Synonyms|99Antonyms|57|Broader|0Narrower|0Related|136
1
irregular
1
lawless
1
not forgivable(adjective, outrageous, intolerable)
1
not permitted(expression, idiom, prohibition)
1
out
1
outlaw
1
punishable
1
refused(adjective, forbidden)
1
reprehensible(adjective, outrageous, intolerable)
1
tabu
1
triable
1
unacceptable
1
unallowed
1
unconstitutional
1
unofficial
1
untouchable
1
vetoed(adjective, forbidden)
1
wrongful
0
allow
0
antiquated
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APASmart Define. (2015). impermissible thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/impermissible/thesaurus/synonyms
ChicagoSmart Define. 2015. "impermissible thesaurus" https://smartdefine.org/impermissible/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, impermissible thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/impermissible/thesaurus/synonyms>.
MLASmart Define. "impermissible thesaurus" 13 April 2015. Web. 22 September 2026. <https://smartdefine.org/impermissible/thesaurus/synonyms>