Synonyms of unsanctioned

1 Syllable
null, vain, bad, void
2 Syllables
absent, unreal, worthless, barren, nuller, bootleg, nothing
3 Syllables
pirated, invalid, black-market, bootlegged, useless, offstage, powerless
4 Syllables
negative, unavailing, unapproved, unofficial, nonexistent, unratified, characterless
5 Syllables
unauthorized, unenforceable, ineffective, imaginary, inefficacious
6 Syllables
illegitimate, inoperative