2
faulty
2
flawed
2
half-baked(adjective, offensive, suitable, improper, satisfactory)
2
icky(verb, adjective, person, bad, rough)
2
impolite(adjective, rude, shocking, indecent)
2
incongruous(adjective, bad, wrong, terrible, inadequate)
2
infelicitous(inadequate, inappropriate, unfit, unsuitable, unbecoming)
2
interdicted
2
irrational(adjective, worthless, defended, verbal attack, unenforceable)
2
irregular(wrong, improper)
2
off(rough, poor, cheap, unsuitable, atrocious)
2
out(adjective, possible, gone)
2
outlawed(adjective, offensive, permitted, prohibited, unthinkable)
2
outrageous(adjective, terrible, immoral, shocking, intolerable)
2
peculiar(wrong, improper)
2
preposterous(immoral, shocking, intolerable, ungovernable)
2
proscribed(adjective, offensive, permitted, prohibited, unthinkable)
2
reject(adjective, offensive, suitable, improper, satisfactory)
2
rejected(verb, person, feelings, disagreeable, emotions)
2
restricted(adjective, offensive, permitted, prohibited, unthinkable)
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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>