5
illicit(adjective, legal, forbidden)
3
forbidden
2
criminal
2
illegal
2
lawless(adjective, reckless, ungoverned)
2
unlawful
1
adulterous
1
corrupt
1
extracurricular
1
extramarital
1
illegitimate
1
immoral
1
iniquitous
1
misbegotten(adjective, legitimate, illegitimate, illicit)
1
prohibited
1
unauthorized
1
unconstitutional
1
wrong
0
bad
0
banned
<123>
11 years ago|575 views|share |citing 
APASmart Define. (2015). licit thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/licit/thesaurus/antonyms
ChicagoSmart Define. 2015. "licit thesaurus" https://smartdefine.org/licit/thesaurus/antonyms (accessed September 22, 2026).
HarvardSmart Define 2015, licit thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/licit/thesaurus/antonyms>.
MLASmart Define. "licit thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/licit/thesaurus/antonyms>