3
allowable(adjective, unacceptable)
3
legal
2
admissible
2
permissible
2
legitimate
2
permitted
1
lawful
1
acceptable
1
accepted
1
authorized
1
bearable
1
sanctioned
0
accorded
0
accredited
0
adequate
0
admittable
0
agreeable
0
allowed
0
appropriate
0
approved
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APASmart Define. (2015). impermissible thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/impermissible/thesaurus/antonyms
ChicagoSmart Define. 2015. "impermissible thesaurus" https://smartdefine.org/impermissible/thesaurus/antonyms (accessed September 22, 2026).
HarvardSmart Define 2015, impermissible thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/impermissible/thesaurus/antonyms>.
MLASmart Define. "impermissible thesaurus" 13 April 2015. Web. 22 September 2026. <https://smartdefine.org/impermissible/thesaurus/antonyms>