623 entries under adjective topic. ×

5
uncomely(suitable, incorrect, unsuitable, unfitting)
5
undignified(rude, shocking, inappropriate, unbecoming)
5
unfavorable(bad, negative, inappropriate, unfortunate)
5
unfitted(useless, unfit)
5
ungodly(rude, vulgar, immoral, indecent)
5
unprofessional(wrong, immoral, unprincipled, unethical)
5
unscrupulous(wrong, corrupt, unreasonable, dishonest)
5
unusual(wrong, severe, harsh, exceptional)
5
villainous
4
abominable
4
bizarre(strange, irregular, odd, inappropriate)
4
debauched
4
degenerate
4
depraved(wrong, wicked, immoral, unprincipled)
4
different(wrong, irregular, unsuitable, unqualified)
4
discordant(false, strange, suitable, inadequate)
4
disreputable(wrong, rude, inappropriate, unfit)
4
dissolute(rude, corrupt, bold, indecent)
4
flagrant
4
foolish(wrong, offensive, rude, careless)
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APASmart Define. (2016). improper thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/improper/thesaurus/synonyms
ChicagoSmart Define. 2016. "improper thesaurus" https://smartdefine.org/improper/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, improper thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/improper/thesaurus/synonyms>.
MLASmart Define. "improper thesaurus" 29 March 2016. Web. 23 September 2026. <https://smartdefine.org/improper/thesaurus/synonyms>