15
unfit(adjective, appropriate, ready, competent, suited)
13
feeble
10
weak(adjective, firm, powerful, stupid, healthy)
9
inadequate(adjective, stupid, ignorant, inept)
9
unsuitable(adjective, stupid, ignorant, inept)
8
inappropriate(adjective, stupid, ignorant, inept)
6
incorrect(adjective, stupid, ignorant, inept)
5
disagree(verb, refuse)
5
poor(adjective, stupid, ignorant, inept)
5
inept(adjective, stupid, expert, incompetent, capable)
5
unhealthy
4
ailing
4
foul
4
improper(adjective, stupid, ignorant, inept)
4
incapable(adjective, strong, stupid, ignorant, inept)
4
incompetent(adjective, stupid, ignorant, inept)
4
infirm(adjective, unhealthy)
4
unbecoming(adjective, stupid, ignorant, inept)
4
unseemly(adjective, stupid, ignorant, inept)
4
wrong(adjective, stupid, ignorant, inept)
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APASmart Define. (2016). fit thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/fit/thesaurus/antonyms
ChicagoSmart Define. 2016. "fit thesaurus" https://smartdefine.org/fit/thesaurus/antonyms (accessed September 24, 2026).
HarvardSmart Define 2016, fit thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/fit/thesaurus/antonyms>.
MLASmart Define. "fit thesaurus" 30 March 2016. Web. 24 September 2026. <https://smartdefine.org/fit/thesaurus/antonyms>