Synonyms of 'demanding'

abstruse, accurate, arduous, astringent, attentive, austere, authoritarian, brutal, burdensome, clamant, clamorous, close, complex, conscientious, correct, critical, crying, delicate, detailed, difficile, difficult, dour, exact, exacting, exigent, exorbitant, exquisite, extortionate, fine, finical, finicking, finicky, formidable, fussy, grasping, grievous, grim, hairy, hard, harsh, herculean, imperative, importunate, insistent, instant, intricate, knotted, knotty, laborious, loud, mean, meticulous, minute, nagging, narrow, nice, operose, oppressive, particular, persistent, pertinacious, precise, pressing, punctilious, punctual, refined, religious, rigid, rigorous, rough, rugged, scrupulous, severe, Spartan, Spartanic, spiny, steep, Stern, strenuous, strict, stringent, subtle, thorny, ticklish, toilsome, tough, tricky, trying, unsparing, uphill, urgent, weighty, wicked