Adjectives that Start with I: 750+ I Adjectives

Using descriptive words that start with I can be useful for creating a name for your business, a headline for your blog post, and much more.

If you’re looking for useful adjectives that start with I, you’ve come to the right place.

In this article, we’ll give you 750+ adjectives that start with I.   

I Words to Describe Someone

Here are all the adjectives starting with I you can use to describe a person.

• Iconic

• Iconoclastic

• Idealistic

• Identical

• Ideological

• Idiotic

• Idle

• Imaginative

• Immature

• Impatient

• Imperious

• Impious

• Impish

• Implacable

• Impolite

• Impressionable

• Impudent

• Impulsive

• Inconsiderate

• Inconsolable

• Incorrigible

• Incorruptible

• Incredulous

• Incurious

• Indecisive

• Indecorous

• Indefatigable

• Independent

• Indifferent

• Indigenous

• Indigent

• Indignant

• Indiscreet

• Indolent

• Indomitable

• Indulgent

• Industrious

• Inebriated

• Ineloquent

• Inept

• Inexperienced

• Infamous

• Infantile

• Infirm

• Inflexible

• Influential

• Infuriated

• Ingenious

• Ingratiating

• Injured

• Innocent

• Innocuous

• Innovative

• Inquisitive

• Insane

• Insecure

• Insensible

• Insensitive

• Insightful

• Insincere

• Insipid

• Insolent

• Insomniac

• Inspirational

• Inspired

• Inspiring

• Insufferable

• Intellectual

• Intelligent

• Intense

• Interesting

• Intimidating

• Intolerant

• Intoxicated

• Intrepid

• Intrigued

• Introverted

• Inventive

• Irascible

• Irate

• Irresponsible

• Irreverent

• Irritable

• Irritated

• Irritating

• Itinerant

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Descriptive Words That Start With I

Descriptive adjectives that start with I can be used to enhance your writing. Here are some common adjectives you can consider using.

• Icebound

• Ichorous

• Icky

• Iconic

• Icy

• Ideal

• Identical

• Identifiable

• Idiomatic

• Idiosyncratic

• Idyllic

• Iffy

• Ignoble

• Iliac

• Ill-fated

• Ill-informed

• Illegal

• Illegible

• Illogical

• Illusory

• Illustrative

• Imaginary

• Imbalanced

• Imitative

• Immaterial

• Immeasurable

• Immediate

• Immense

• Imminent

• Immobile

• Immoderate

• Immotile

• Immovable

• Impaired

• Impassive

• Impending

• Imperative

• Imperceptible

• Imperial

• Impersonal

• Implausible

• Implicit

• Implosive

• Imported

• Improvised

• Inaccessible

• Inactive

• Inalienable

• Inanimate

• Inapplicable

• Inappropriate

• Inartistic

• Inbuilt

• Incalculable

• Incarnate

• Incipient

• Incisive

• Incognito

• Incoming

• Incompatible

• Inconceivable

• Incongruent

• Inconsistent

• Incontinent

• Inconvertible

• Increasing

• Incredible

• Incriminatory

• Indecent

• Indefatigable

• Indestructible

• Indigo

• Indirect

• Indisposed

• Indistinct

• Individual

• Indivisible

• Indolent

• Indomitable

• Inducive

• Industrial

• Industrious

• Ineffectual

• Inelastic

• Inelegant

• Ineloquent

• Inept

• Inert

• Inevitable

• Inexact

• Inexplicable

• Inextricable

• Infantile

• Infatuated

• Infective

• Infernal

• Infinite

• Infirm

• Inhumane

• Initial

• Inky

• Inland

• Inmost

• Innate

• Innermost

• Inopportune

• Inordinate

• Inorganic

• Insanitary

• Insatiable

• Inseparable

• Instructive

• Instrumental

• Insular

• Integrated

• Intended

• Interdisciplinary

• Internal

• Intestate

• Intestinal

• Intimate

• Intoxicated

• Intrepid

• Intricate

• Intriguing

• Intrinsic

• Introductory

• Introspective

• Invaluable

• Invariable

• Inverse

• Invidious

• Invigorating

• Invincible

• Inward

• Ionic

• Ironclad

• Iterative

• Ivied

Character Traits That Start With I

If you’re trying specifically to describe someone’s personality traits or character traits, there are plenty of I adjectives you can use.

• Idealistic

• Imaginative

• Immature

• Impious

• Impish

• Impolite

• Impudent

• Impulsive

• Inconsiderate

• Incorrigible

• Incorruptible

• Indecisive

• Independent

• Indolent

• Industrious

• Ineloquent

• Infamous

• Infantile

• Innocent

• Insecure

• Insensitive

• Insightful

• Insipid

• Insolent

• Intellectual

• Intelligent

• Intense

• Intimidating

• Intolerant

• Intrepid

• Introverted

• Irresponsible

• Irreverent

• Irritable

• Itinerant

Positive Words That Start With I

Depending on what you’re writing, you might be looking for I adjectives that have positive connotations. Here are some positive adjectives that start with I.

• Iconic

• Iconoclastic

• Ideal

• Idolized

• Idyllic

• Illuminating

• Illustrious

• Imaginative

• Immaculate

• Impeccable

• Important

• Impregnable

• Impressive

• Improved

• Incandescent

• Inclusive

• Incomparable

• Incredible

• Indefatigable

• Indispensable

• Indivisible

• Indomitable

• Industrious

• Infallible

• Influential

• Ingenious

• Inimitable

• Innovative

• Inquisitive

• Insightful

• Inspirational

• Inspired

• Inspiring

• Instrumental

• Intact

• Integral

• Intellectual

• Intelligent

• Interesting

• Intimate

• Intrepid

• Intrigued

• Introverted

• Inventive

• Invigorating

• Invincible

• Inviting

• Invulnerable

Negative Words That Start With I

Conversely, there are also times you’ll need negative adjectives. Here are our negative adjectives that start with I.

• Icebound

• Ichorous

• Icky

• Idiotic

• Idle

• Idolatrous

• Iffy

• Ignoble

• Ignominious

• Ignorable

• Ignorant

• Ill

• Ill-fated

• Ill-informed

• Illegal

• Illegible

• Illegitimate

• Illicit

• Illogical

• Imbalanced

• Imbecile

• Imbecilic

• Imitative

• Immaterial

• Immature

• Immoderate

• Immodest

• Immoral

• Impatient

• Imperfect

• Imperious

• Impious

• Impish

• Implausible

• Impolite

• Impotent

• Impoverished

• Impracticable

• Impractical

• Imprecise

• Improper

• Improvable

• Imprudent

• Impudent

• Impulsive

• Impure

• Inaccurate

• Inadequate

• Inane

• Inapt

• Inbred

• Incendiary

• Incestuous

• Inchoate

• Incoherent

• Incompatible

• Incompetent

• Incongruent

• Inconsequential

• Inconsiderate

• Inconsistent

• Incorrect

• Incorrigible

• Incorruptible

• Incriminatory

• Incurable

• Incurious

• Indebted

• Indecent

• Indecisive

• Indecorous

• Indiscreet

• Indolent

• Indulgent

• Inebriated

• Ineffective

• Ineffectual

• Inefficient

• Inelegant

• Ineloquent

• Inept

• Inexcusable

• Inexperienced

• Infamous

• Infantile

• Inferior

• Infernal

• Infirm

• Inflexible

• Infuriated

• Infuriating

• Ingratiating

• Inimical

• Injured

• Injurious

• Insane

• Insecure

• Insensible

• Insensitive

• Insignificant

• Insincere

• Insipid

• Insolent

• Insolvent

• Insubordinate

• Insufferable

• Insufficient

• Insulting

• Insupportable

• Intolerable

• Intolerant

• Intoxicated

• Invidious

• Irascible

• Irate

• Irksome

• Irresponsible

• Irreverent

• Irritable

• Irritated

• Irritating

Full List of Adjectives Starting With I

There are many other adjectives starting with I that don’t fit neatly into the categories above.

So, in this section, we’ll give you a full list of all the adjectives that start with I.

• Iambic

• Iatrogenic

• Iberian

• Icebound

• Icelandic

• Ichorous

• Icky

• Iconic

• Iconoclastic

• Icosahedral

• Ictal

• Icteric

• Icterogenic

• Ictic

• Icy

• Ideal

• Idealistic

• Idealized

• Ideational

• Idempotent

• Identical

• Identifiable

• Ideographic

• Ideologic

• Ideological

• Idiographic

• Idiomatic

• Idiomatical

• Idiopathic

• Idiosyncratic

• Idiotic

• Idle

• Idolatrous

• Idolized

• Idyllic

• Iffy

• Igneous

• Ignescent

• Ignitable

• Ignitible

• Ignoble

• Ignominious

• Ignorable

• Ignorant

• Iliac

• Ill

• Ill-fated

• Ill-informed

• Illative

• Illegal

• Illegible

• Illegitimate

• Illiberal

• Illicit

• Illimitable

• Illiterate

• Illogical

• Illuminating

• Illusional

• Illusionary

• Illusive

• Illusory

• Illustrative

• Illustrious

• Imaginable

• Imaginary

• Imaginative

• Imbalanced

• Imbecile

• Imbecilic

• Imbricate

• Imbricated

• Imitation

• Imitative

• Immaculate

• Immanent

• Immaterial

• Immature

• Immeasurable

• Immediate

• Immemorial

• Immense

• Imminent

• Immiscible

• Immobile

• Immoderate

• Immodest

• Immoral

• Immortal

• Immotile

• Immovable

• Immune

• Immunized

• Immunochemical

• Immunocompetent

• Immunocompromised

• Immunodeficient

• Immunogenic

• Immunologic

• Immunological

• Immutable

• Impaired

• Impalpable

• Imparipinnate

• Impartial

• Impassable

• Impassioned

• Impassive

• Impatient

• Impeccable

• Impeccant

• Impecunious

• Impellent

• Impendent

• Impending

• Impenetrable

• Impenitent

• Imperative

• Imperceptible

• Imperceptive

• Imperfect

• Imperforate

• Imperial

• Imperialist

• Imperialistic

• Imperious

• Imperishable

• Impermanent

• Impermeable

• Impermissible

• Impersonal

• Impertinent

• Imperturbable

• Imperviable

• Impervious

• Impetiginous

• Impetuous

• Impious

• Impish

• Implacable

• Implanted

• Implausible

• Implemental

• Implicated

• Implicational

• Implicative

• Implicit

• Implike

• Implosive

• Impolite

• Impolitic

• Imponderable

• Important

• Imported

• Importunate

• Imposing

• Impossible

• Impotent

• Impoverished

• Impracticable

• Impractical

• Imprecise

• Impregnable

• Impressed

• Impressible

• Impressionable

• Impressionist

• Impressionistic

• Impressive

• Improbable

• Impromptu

• Improper

• Improvable

• Improved

• Improvident

• Improving

• Improvisational

• Improvised

• Imprudent

• Impudent

• Impugnable

• Impuissant

• Impulsive

• Impure

• Imputable

• Imputrescible

• Inaccessible

• Inaccurate

• Inactive

• Inadequate

• Inadmissible

• Inadvertent

• Inadvisable

• Inaesthetic

• Inalienable

• Inalterable

• Inane

• Inanimate

• Inapplicable

• Inapposite

• Inappreciable

• Inappropriate

• Inapt

• Inarguable

• Inarticulate

• Inartistic

• Inattentive

• Inaudible

• Inaugural

• Inauspicious

• Inauthentic

• Inboard

• Inborn

• Inbound

• Inbred

• Inbuilt

• Incalculable

• Incan

• Incandescent

• Incapable

• Incarnate

• Incased

• Incautious

• Incendiary

• Incertain

• Incessant

• Incestuous

• Inchoate

• Inchoative

• Incident

• Incidental

• Incipient

• Incised

• Incisive

• Incitive

• Inclement

• Inclined

• Included

• Inclusive

• Incognito

• Incognizant

• Incognoscible

• Incoherent

• Incombustible

• Incoming

• Incommodious

• Incommunicado

• Incommutable

• Incomparable

• Incompatible

• Incompetent

• Incomplete

• Incomprehensible

• Incomprehensive

• Incomputable

• Inconceivable

• Inconclusive

• Incongruent

• Incongruous

• Inconsequent

• Inconsequential

• Inconsiderable

• Inconsiderate

• Inconsistent

• Inconsolable

• Inconspicuous

• Inconstant

• Incontestable

• Incontinent

• Incontrovertible

• Inconvenient

• Inconvertible

• Incorporate

• Incorporated

• Incorporating

• Incorporative

• Incorporeal

• Incorrect

• Incorrigible

• Incorrupt

• Incorruptible

• Increasing

• Incredible

• Incredulous

• Incremental

• Incriminatory

• Inculpable

• Inculpative

• Inculpatory

• Incumbent

• Incurable

• Incurious

• Incursive

• Incurvate

• Incurved

• Indebted

• Indecent

• Indecipherable

• Indecisive

• Indecorous

• Indefatigable

• Indefeasible

• Indefensible

• Indefinable

• Indefinite

• Indehiscent

• Indelible

• Indelicate

• Independent

• Indescribable

• Indestructible

• Indeterminable

• Indeterminate

• Indexical

• Indexless

• Indian

• Indicative

• Indicatory

• Indictable

• Indie

• Indifferent

• Indigenous

• Indigent

• Indigestible

• Indignant

• Indigo

• Indirect

• Indiscernible

• Indiscreet

• Indiscrete

• Indiscriminate

• Indispensable

• Indisposed

• Indisputable

• Indissoluble

• Indistinct

• Individual

• Individualistic

• Indivisible

• Indocile

• Indolent

• Indomitable

• Indonesian

• Indoor

• Indrawn

• Indubitable

• Inducive

• Inductive

• Indulgent

• Indurate

• Indusial

• Industrial

• Industrious

• Indwelling

• Inebriated

• Inedible

• Ineffable

• Ineffective

• Ineffectual

• Inefficacious

• Inefficient

• Inelaborate

• Inelastic

• Inelegant

• Ineligible

• Ineloquent

• Ineluctable

• Inept

• Inequitable

• Ineradicable

• Inerrable

• Inerrant

• Inert

• Inescapable

• Inessential

• Inestimable

• Inevitable

• Inexact

• Inexcusable

• Inexhaustible

• Inexorable

• Inexpedient

• Inexpensive

• Inexperienced

• Inexperient

• Inexpert

• Inexpiable

• Inexplicable

• Inexplicit

• Inexpressible

• Inexpressive

• Inexpugnable

• Inexpungeable

• Inexpungible

• Inextensible

• Inextirpable

• Inextricable

• Infallible

• Infamous

• Infantile

• Infatuated

• Infeasible

• Infected

• Infectious

• Infective

• Infelicitous

• Inferential

• Inferior

• Infernal

• Infertile

• Infinite

• Infinitesimal

• Infinitival

• Infirm

• Inflamed

• Inflammable

• Inflammatory

• Inflatable

• Inflated

• Inflationary

• Inflectional

• Inflexible

• Inflowing

• Influent

• Influential

• Informal

• Informational

• Informative

• Informatory

• Informed

• Infrahuman

• Infrangible

• Infrared

• Infrasonic

• Infrequent

• Infuriated

• Infuriating

• Ingenious

• Ingenuous

• Inglorious

• Ingrained

• Ingratiating

• Ingratiatory

• Ingrowing

• Ingrown

• Inguinal

• Inhabitable

• Inhalant

• Inharmonic

• Inharmonious

• Inherent

• Inheritable

• Inherited

• Inhibited

• Inhibitory

• Inhomogeneous

• Inhospitable

• Inhuman

• Inhumane

• Inhumed

• Inimical

• Inimitable

• Iniquitous

• Initial

• Initiative

• Initiatory

• Injectable

• Injudicious

• Injured

• Injurious

• Inky

• Inlaid

• Inland

• Inmost

• Innate

• Inner

• Innermost

• Innocent

• Innocuous

• Innovational

• Innovative

• Innoxious

• Innumerable

• Innumerate

• Innumerous

• Inodorous

• Inoffensive

• Inoperable

• Inoperative

• Inopportune

• Inordinate

• Inorganic

• Inpouring

• Inquiring

• Inquisitive

• Inquisitorial

• Inquisitory

• Insalubrious

• Insane

• Insanitary

• Insatiable

• Insatiate

• Inscriptive

• Inscrutable

• Insectan

• Insecticidal

• Insectivorous

• Insecure

• Insensate

• Insensible

• Insensitive

• Insentient

• Inseparable

• Inshore

• Inside

• Insidious

• Insightful

• Insignificant

• Insincere

• Insipid

• Insistent

• Insolent

• Insoluble

• Insolvable

• Insolvent

• Insomniac

• Insouciant

• Inspirational

• Inspiratory

• Inspired

• Inspiring

• Inspiriting

• Inst

• Instant

• Instantaneous

• Instigative

• Instinct

• Instinctive

• Instinctual

• Institutional

• Instructive

• Instrumental

• Insubordinate

• Insubstantial

• Insufferable

• Insufficient

• Insular

• Insulting

• Insuperable

• Insupportable

• Insurable

• Insurgent

• Insurmountable

• Insusceptible

• Intact

• Intangible

• Integral

• Integrated

• Integrative

• Integumental

• Integumentary

• Intellectual

• Intelligent

• Intelligible

• Intemperate

• Intended

• Intense

• Intensional

• Intensive

• Intent

• Intentional

• Interactive

• Interbred

• Intercalary

• Intercellular

• Interchangeable

• Interchurch

• Intercostal

• Intercrossed

• Interdepartmental

• Interdependent

• Interdisciplinary

• Interested

• Interesting

• Interfacial

• Interfaith

• Interfering

• Intergalactic

• Interim

• Interior

• Interlacing

• Interlineal

• Interlinear

• Interlinking

• Interlobular

• Interlocking

• Interlocutory

• Intermediate

• Intermeshed

• Interminable

• Intermittent

• Internal

• International

• Internecine

• Interoceptive

• Interoperable

• Interpersonal

• Interpretable

• Interpretative

• Interpretive

• Interracial

• Interrelated

• Interrogative

• Interrogatory

• Interschool

• Intersectant

• Intersexual

• Interspecies

• Interspecific

• Interstate

• Interstellar

• Interstitial

• Intertidal

• Intertribal

• Intestate

• Intestinal

• Intimal

• Intimate

• Intimidating

• Intolerable

• Intolerant

• Intoned

• Intoxicant

• Intoxicated

• Intracellular

• Intracerebral

• Intracranial

• Intractable

• Intradermal

• Intradermic

• Intragroup

• Intralobular

• Intramural

• Intramuscular

• Intransigent

• Intransitive

• Intraspecies

• Intraspecific

• Intrastate

• Intrauterine

• Intravenous

• Intrepid

• Intricate

• Intrigued

• Intriguing

• Intrinsic

• Intrinsical

• Introductory

• Introjected

• Introspective

• Introuvable

• Introversive

• Introverted

• Introvertish

• Introvertive

• Intrusive

• Intuitionist

• Intuitive

• Intumescent

• Inured

• Inutile

• Invalid

• Invaluable

• Invariable

• Invariant

• Invasive

• Inventive

• Inverse

• Invertebrate

• Invertible

• Investigatory

• Inveterate

• Invidious

• Invigorating

• Invincible

• Inviolable

• Inviolate

• Invisible

• Invitational

• Invitatory

• Invited

• Inviting

• Involucrate

• Involuntary

• Involute

• Involved

• Invulnerable

• Inward

• Inwards

• Inwrought

• Iodinated

• Iodinating

• Iodized

• Ionian

• Ionic

• Ionized

• Ipsilateral

• Iraki

• Iranian

• Iraqi

• Irascible

• Irate

• Irenic

• Iridaceous

• Iridescent

• Iridic

• Irish

• Iritic

• Irksome

• Iron

• Ironclad

• Ironed

• Ironic

• Ironical

• Ironlike

• Ironshod

• Irrational

• Irreclaimable

• Irreconcilable

• Irrecoverable

• Irredeemable

• Irreducible

• Irrefutable

• Irregular

• Irrelative

• Irrelevant

• Irreligious

• Irremediable

• Irremovable

• Irreparable

• Irreplaceable

• Irrepressible

• Irreproachable

• Irresistible

• Irresolute

• Irresponsible

• Irretrievable

• Irreverent

• Irreversible

• Irrevocable

• Irritable

• Irritated

• Irritating

• Irritative

• Irruptive

• Ischemic

• Isentropic

• Islamic

• Ismaili

• Isobilateral

• Isochronal

• Isochronous

• Isoclinal

• Isoclinic

• Isocyclic

• Isogonic

• Isolable

• Isolated

• Isomeric

• Isometric

• Isomorphic

• Isosceles

• Isosmotic

• Isothermal

• Isothermic

• Isotonic

• Isotopic

• Isotropic

• Isotropous

• Italian

• Italic

• Itchy

• Iterative

• Itinerant

• Ivied

There you have it: our comprehensive list of adjectives that start with I.

Don’t forget to run your writing through ProWritingAid to check for weaknesses and errors. The Word Explorer can help you improve your vocabulary and offer multiple adjectives to try.

Good luck, and happy writing!