Synonyms|66Antonyms|4|Broader|1Narrower|9Related|54
6
illegal(adjective, unauthorised)
6
unauthorized(adjective, permitted, sanctioned)
6
unofficial(adjective, unauthorised)
6
unsanctioned(adjective, unauthorised)
5
illicit(adjective, unauthorised)
4
prohibited
4
uncertified
3
exploded
2
emanationist
2
illegitimate
2
nonorthodox
1
forbidden(verb, unauthorised)
1
antinomian
1
apocryphal
1
blown upon(verb, expression, phrasal verb, disapprobation)
1
disapproved
1
erroneous
1
fallacious
1
heretical
1
heterodox
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APASmart Define. (2015). unapproved thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/unapproved/thesaurus/synonyms
ChicagoSmart Define. 2015. "unapproved thesaurus" https://smartdefine.org/unapproved/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, unapproved thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/unapproved/thesaurus/synonyms>.
MLASmart Define. "unapproved thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/unapproved/thesaurus/synonyms>