Synonyms of demanding

1 Syllable

hard, tough, strict, trying

2 Syllables

pressing, urgent, fussy, nagging, carking, captious, upstream, hard-won, strenuous, dragger, tiring, grueling, heaton, toilful, weighty, stringent, wearing, jealous, quenchless, grievous, heat-on, taxing

3 Syllables

ambitious, insistent, exhausting, impatient, onerous, exigent, called-for, cavillous, backbreaker, effortful, toilsome, difficult, requesting, imperious, fastidious, nit-picky, exacting, critical, requiring, hurry-up, clamorous, speeded-up, querulous

4 Syllables

unforbearing, insatiate, burdensome, possessory, bothersome, troublesome, tiresome, overtaxing, top-priority, exceptive, tyrannical, oppressive, difficile, unquenchable, prehensile, depressive, intensive, boresome, dictatorial, ungrateful, insatiable, infestive, assertive, high-priority, no-nonsense

5 Syllables

importunate, superincumbent, unsatisfiable, overcritical, acquisitive, hypercritical, enervative, unamenable

6 Syllables

energy-consuming