12
unsuitable(adjective, improper, inappropriate)
7
inapt(adjective, happy, suitable, improper, inappropriate)
7
incapable(adjective, improper, inappropriate)
6
incorrect(adjective, improper, inappropriate)
5
disinclined(verb, adjective, improper, inappropriate)
5
stupid(adjective, improper, inappropriate)
4
improper(adjective, inappropriate)
4
inappropriate(adjective, improper)
4
unlikely
4
unseemly(adjective, improper, inappropriate)
4
unintelligent(adjective, inept)
3
unapt
3
unrelatable
3
inept
3
not good
3
unskilled(adjective, improper, inappropriate)
2
baneful
2
dull
2
fatuous
2
inapplicable
<1234510>
10 years ago|3.1k views|share |citing 
APASmart Define. (2016). apt thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/apt/thesaurus/antonyms
ChicagoSmart Define. 2016. "apt thesaurus" https://smartdefine.org/apt/thesaurus/antonyms (accessed September 23, 2026).
HarvardSmart Define 2016, apt thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/apt/thesaurus/antonyms>.
MLASmart Define. "apt thesaurus" 29 March 2016. Web. 23 September 2026. <https://smartdefine.org/apt/thesaurus/antonyms>