Synonyms|56Antonyms|2|Broader|0Narrower|0Related|21
4
unreasonable(adjective, wrong)
3
unacceptable
3
objectionable(adjective, wrong)
3
unwarrantable(adjective, wrong)
2
illegal(adjective, wrong)
2
improper(adjective, wrong)
2
inadmissible(adjective, appropriate)
2
unforgivable(adjective, inexcusable)
2
unjustifiable(adjective, wrong)
2
impermissible
1
inexcusable(adjective, forgivable)
1
not forgivable
0
bann
0
forbidden
0
immoral
0
inappropriate
0
indefensible
0
iniquitous
0
prohibited
0
tasteless
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APASmart Define. (2015). unallowable thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/unallowable/thesaurus/synonyms
ChicagoSmart Define. 2015. "unallowable thesaurus" https://smartdefine.org/unallowable/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, unallowable thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/unallowable/thesaurus/synonyms>.
MLASmart Define. "unallowable thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/unallowable/thesaurus/synonyms>