3
incompatible
3
nonspecific
3
objectionable(adjective, unsuitable, unseemly)
3
outlawed
3
prohibited
3
unfit
3
unfitting(adjective, unsuitable, unseemly)
3
unmannerly
3
unreal
3
unsustainable
3
untoward(adjective, suitable, improper)
3
untrue
2
awkward
2
black
2
colloquial
2
crass(adjective, unsuitable, unseemly)
2
criminal(good, legal)
2
disallowed
2
dishonest(adjective, bad)
2
dishonorable
10 years ago|7.9k views|share |citing 
APASmart Define. (2016). proper thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/proper/thesaurus/antonyms
ChicagoSmart Define. 2016. "proper thesaurus" https://smartdefine.org/proper/thesaurus/antonyms (accessed September 23, 2026).
HarvardSmart Define 2016, proper thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/proper/thesaurus/antonyms>.
MLASmart Define. "proper thesaurus" 31 March 2016. Web. 23 September 2026. <https://smartdefine.org/proper/thesaurus/antonyms>