1
under the ban(expression, idiom)
1
undue
1
unenforceable(adjective, void, meaningless, invalid, unsubstantiated)
1
unfruitful(adjective, meaningless, invalid, unsubstantiated, unsupported)
1
unpermissible
1
unprivileged
1
unqualified
1
unratified(adjective, void, meaningless, invalid, unsubstantiated)
1
unsuccessful(adjective, meaningless, invalid, unsubstantiated, unsupported)
1
untouchable
1
unwarranted(adjective, undueness)
1
useless(adjective, void, unsound, ineffective, ineffectual)
1
vain(adjective, void, unsound, ineffective, ineffectual)
1
vetoed
1
voided(adjective, meaningless, invalid, unsubstantiated, unsupported)
1
wildcat
1
worthless(adjective, void, unsound, puny, ineffective)
0
against the law
0
annulled(invalid, canceled)
0
bootleg(adjective, illegal)
11 years ago|1.3k views|share |citing 
APASmart Define. (2015). unsanctioned thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/unsanctioned/thesaurus/synonyms
ChicagoSmart Define. 2015. "unsanctioned thesaurus" https://smartdefine.org/unsanctioned/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, unsanctioned thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/unsanctioned/thesaurus/synonyms>.
MLASmart Define. "unsanctioned thesaurus" 14 April 2015. Web. 28 September 2026. <https://smartdefine.org/unsanctioned/thesaurus/synonyms>