incompatible, perverse, graceless, inept, opposed, unfitting, contrasted, out or keeping, impudent, offensive, impolite, unapt, incongruous, unfortunate, incorrect, wrong, contrary, contradictory, remote, smart, agree, unconnected, insolent, ill-chosen, abrasive, unhappy, usual, ability, ill-suited, hostile, discourteous, good, rude, ill-mannered, conflicting, distant, unlike, amiss
improper (part of speech: adjective)
extraneous (part of speech: adjective)
extrinsic, inapplicable, impertinent, outer, extraneous, dissociated, nonessential, estranged, eerie, separated, foreign, extraterrestrial, disconnected, outlandish, strange, unaffiliated, foreign-born, other, alien, immaterial, detached, parenthetical, outside, removed, segregated, inadmissible, separate, exotic, unessential, unallied, disjoint, external, irrelevant, unrelated, disaffiliated
inappropriate (part of speech: adjective)
inopportune (part of speech: adjective)
unacceptable (part of speech: adjective)
- What her beliefs were now I was wise enough to leave unquestioned, and Frances, to my great relief, kept the conversation well away from such inappropriate topics. - "The Damned", Algernon Blackwood.
- At the same time, the growth of a political life different from that of Britain, had, year by year, made the British names more inappropriate. - "British Supremacy & Canadian Self-Government 1839-1854", J. L. Morison.
- Well, said the young man, desperately plunging, the coronet I should say would certainly not be inappropriate. - "The Major", Ralph Connor.