Synonyms of 'effectual'

able, active, actual, adequate, authoritative, banausic, binding, capable, causal, causative, certain, certified, charismatic, charming, competent, conclusive, confirmed, consequential, constitutive, decisive, determinative, determined, documentary, effective, efficacious, efficient, enchanting, estimable, etiological, factual, feasible, forceful, forcible, formative, functional, go, historical, important, influential, institutive, lawful, legal, magnetic, momentous, occasional, operable, operational, operative, originative, personable, persuasive, pivotal, potent, powerful, practicable, practical, pragmatic, prestigious, productive, proficient, real, reputable, Sound, strong, substantial, sure-enough, telling, toothy, true, truthful, undenied, undoubted, unmistaken, unquestionable, useful, valid, veracious, verified, veritable, weighty, winning, workable