Synonyms|457Antonyms|115|Broader|9Narrower|12Related|204

28 entries under expression topic. ×

3
against the law(adjective, idiom, wrong, illegitimate)
3
contrary to law(idiom, illicit)
3
off limits(adjective, adverb, offensive, permitted)
3
out of bounds(adjective, idiom, offensive, permitted)
2
beyond the pale(idiom, offensive, permitted, prohibition)
2
not permitted(idiom, prohibition)
2
off base(wrong, senseless, permitted, unjustified)
2
out of line(idiom, wrong, senseless, permitted)
2
ruled out(offensive, permitted, prohibited, unthinkable)
2
under the table(adjective, permitted, illegitimate, unjustified)
1
below the belt(adjective, idiom, corrupt, dishonest)
1
break the law
1
hardly the thing
1
not allowed(idiom, adverb, offensive, permitted)
1
not approved(adjective, illegitimate, unlawful, prohibited)
1
not legal(adjective, illegitimate, unlawful, prohibited)
1
not the thing
1
outside the law(adjective, illegitimate, unlawful, prohibited)
1
too great(adjective, unreasonable, improper, excessive)
1
under the ban
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APASmart Define. (2015). illegal thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/illegal/thesaurus/synonyms
ChicagoSmart Define. 2015. "illegal thesaurus" https://smartdefine.org/illegal/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, illegal thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/illegal/thesaurus/synonyms>.
MLASmart Define. "illegal thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/illegal/thesaurus/synonyms>