Synonyms of unimpressible

1 Syllable

light, blasé, smooth, cool, calm, cold

2 Syllables

mellow, loose, neutral, airy, trifling, casual, placid, happy, bullhead, listless, easy, aloof, offhand

3 Syllables

lukewarm, incurious, detached, hard-hearted, stiff-necked, nonchalant, serene, unruffled, neglectful, untroubled, collected, effortless, unfeeling, uncaring, insouciant, careless, composed, negligent

4 Syllables

unperturbed, obdurate, impassive, unexcited, unflappable, insensible, indifferent, apathetic, unconcerned

5 Syllables

disinterested, unemotional, disimpassioned, dispassionate, imperturbable, inexcitable, lackadaisical, imperceivable