56 entries under adjective topic. ×

15
inappropriate(proper, suitable, fitting)
11
unsuitable(proper, inappropriate)
7
improper(right, reasonable, suitable)
5
wrong(suitable, inappropriate)
3
unfit(appropriate, suited)
3
incorrect(sound, right)
3
extraneous(material, unneeded)
3
unfitting
2
unseemly(taste, proper, improper)
2
incompatible
2
unacceptable(good, agreeable)
2
unbefitting
1
unbecoming
1
inapplicable
1
inapt
1
incongruous
1
indecent
1
indecorous
1
inept
1
infelicitous
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APASmart Define. (2016). appropriate thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/appropriate/thesaurus/antonyms
ChicagoSmart Define. 2016. "appropriate thesaurus" https://smartdefine.org/appropriate/thesaurus/antonyms (accessed September 23, 2026).
HarvardSmart Define 2016, appropriate thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/appropriate/thesaurus/antonyms>.
MLASmart Define. "appropriate thesaurus" 29 March 2016. Web. 23 September 2026. <https://smartdefine.org/appropriate/thesaurus/antonyms>