240 entries under adjective topic. ×

4
deplorable(offensive, unpleasant, improper, distasteful)
4
foul(horrible, disagreeable, unsuitable, unqualified)
4
horrid(horrible, disagreeable, unsuitable, unqualified)
4
indefensible(defended, verbal attack)
4
ineligible(inadequate, inappropriate, qualified, unfit)
4
repulsive(bad, nasty, offensive, unpleasant)
4
tasteless(unsuitable, unfitting, untimely)
4
unaccepted
4
unbecoming(rude, shocking, inappropriate, indecent)
4
unfit(offensive, unpleasant, inadequate, inappropriate)
4
unfortunate(unsuitable, unfitting, endured, untimely)
4
unsound(bad, nasty, dirty, inferior)
4
unsuited(inadequate, inappropriate, unsuitable, unbecoming)
3
acute
3
agonizing
3
appalling
3
below par(expression, idiom, poor, offensive)
3
bitter(pain, second-rate, unsatisfactory)
3
damaged(bad, poor, offensive, suitable)
3
dire
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APASmart Define. (2016). unacceptable thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/unacceptable/thesaurus/synonyms
ChicagoSmart Define. 2016. "unacceptable thesaurus" https://smartdefine.org/unacceptable/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, unacceptable thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/unacceptable/thesaurus/synonyms>.
MLASmart Define. "unacceptable thesaurus" 24 March 2016. Web. 26 September 2026. <https://smartdefine.org/unacceptable/thesaurus/synonyms>