Synonyms|505Antonyms|154|Broader|10Narrower|12Related|765
10
unlawful
6
criminal(adjective, good, legal, lawless, felonious)
5
illegal
5
prohibited(verb, adjective)
5
lawless(adjective, reckless, ungoverned)
4
illegitimate
4
illicit
4
impermissible
4
iniquitous
4
wrongful
3
banned
3
forbidden
3
guilty
3
immoral
3
irregular
3
misbegotten(adjective, legitimate, illegitimate, illicit)
3
outlaw
3
outlawed
3
sinful
3
taboo
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APASmart Define. (2015). lawful thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/lawful/thesaurus/antonyms
ChicagoSmart Define. 2015. "lawful thesaurus" https://smartdefine.org/lawful/thesaurus/antonyms (accessed September 27, 2026).
HarvardSmart Define 2015, lawful thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/lawful/thesaurus/antonyms>.
MLASmart Define. "lawful thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/lawful/thesaurus/antonyms>