23 entries under adjective topic. ×

6
illegal
6
unauthorized(permitted, sanctioned)
6
unofficial
6
unsanctioned
5
illicit
2
illegitimate
1
informal
1
lawless
1
unauthorised
1
unlawful
1
wrongful
0
clandestine
0
contraband
0
criminal
0
crooked
0
dishonest
0
forcible
0
improper
0
private
0
shady
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APASmart Define. (2015). unapproved thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/unapproved/thesaurus/synonyms
ChicagoSmart Define. 2015. "unapproved thesaurus" https://smartdefine.org/unapproved/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, unapproved thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/unapproved/thesaurus/synonyms>.
MLASmart Define. "unapproved thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/unapproved/thesaurus/synonyms>