Synonyms|436Antonyms|138|Broader|5Narrower|18Related|1.2k
8
unauthorized(adjective, permitted, sanctioned)
7
unofficial(adjective, illegitimate, confirmed, unauthorized)
7
illegal(adjective, good, legal, illegitimate)
7
shy
5
illegitimate(adjective, legal)
4
lawless
4
unlawful
3
forbidden(adjective, prohibited, outlawed)
3
illicit
3
impermissible
3
self-appointed
3
unaccredited
3
unauthorised
2
black
2
in an unlawful manner
2
unlicenced
2
unlicensed
2
unsanctioned
2
verboten
2
wrongful
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APASmart Define. (2015). authorized thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/authorized/thesaurus/antonyms
ChicagoSmart Define. 2015. "authorized thesaurus" https://smartdefine.org/authorized/thesaurus/antonyms (accessed September 21, 2026).
HarvardSmart Define 2015, authorized thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/authorized/thesaurus/antonyms>.
MLASmart Define. "authorized thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/authorized/thesaurus/antonyms>