2
nasty
2
non-governmental
2
nonlegal
2
outlaw
2
penal
2
punishable
2
smuggled
2
unauthorized
2
unconstitutional
2
under-the-counter
2
unratified
2
unrighteous
2
unsportsmanlike
2
vicious
2
wicked
1
bad
1
against the law(expression, adjective, idiom, illegal)
1
bogus
1
capricious
1
corrupt
10 years ago|2.9k views|share |citing 
APASmart Define. (2016). legal thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/legal/thesaurus/antonyms
ChicagoSmart Define. 2016. "legal thesaurus" https://smartdefine.org/legal/thesaurus/antonyms (accessed October 1, 2026).
HarvardSmart Define 2016, legal thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/legal/thesaurus/antonyms>.
MLASmart Define. "legal thesaurus" 29 March 2016. Web. 1 October 2026. <https://smartdefine.org/legal/thesaurus/antonyms>