Unapt, inappropriate, improper, unsuited, unsuitable, inapt, inapposite, inapplicable, irrelevant, not pertinent, impertinent, malapropos, ill-timed, intrusive, clumsy, unfit, unfitting, unbefitting, unbecoming, forced, unseasonable, far-fetched, inadmissible, uncongenial, ill-assorted, ill-sorted, repugnant to, unaccommodating, irreducible.
(Phrases). Out of season; out of character; out of keeping; out of tune; out of place; out of one's element; at odds; a fish out of water; on all fours; neither here nor there; beside the mark; "humano capite cervicem pictor equinam jungere"; "compact of jars."
(Adverbs). At variance with, in defiance of, in contempt of, in spite of, despite.