623 entries under adjective topic. ×

4
gauche(dull, flat, slow, incorrect)
4
graceless(offensive, rude, foolish, stupid)
4
heinous
4
ill-matched(wrong, inappropriate, unfit, inconsonant)
4
impudent(rude, corrupt, bold, indecent)
4
inadequate(useless, inappropriate, incorrect, unfit)
4
ineligible(useless, inappropriate, unfit, worthless)
4
lustful(dull, blue, rough, low)
4
malodorous(offensive, rude, coarse, vile)
4
obnoxious(offensive, wicked, distasteful, intolerable)
4
off(wrong, suitable, unsuitable, unfitting)
4
preposterous(suitable, unsuitable, unfitting, intolerable)
4
profligate(rude, corrupt, coarse, vile)
4
prurient(society, sex, metters, offensive)
4
raw(rude, dirty, nasty, offensive)
4
reprobate(rude, corrupt, bold, indecent)
4
scurrilous(offensive, coarse, vulgar, indecent)
4
spicy(society, sex, metters)
4
unable(dull, flat, slow, awkward)
4
undesirable(offensive, terrible, distasteful, unacceptable)
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APASmart Define. (2016). improper thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/improper/thesaurus/synonyms
ChicagoSmart Define. 2016. "improper thesaurus" https://smartdefine.org/improper/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, improper thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/improper/thesaurus/synonyms>.
MLASmart Define. "improper thesaurus" 29 March 2016. Web. 22 September 2026. <https://smartdefine.org/improper/thesaurus/synonyms>