2
sterile(adjective, meaningless, unsubstantiated, unsupported, annulled)
2
strike
2
unconfirmed(adjective, meaningless, unsubstantiated, unsupported, annulled)
2
unfit(adjective, weak, feeble, broken, incapable)
2
unreal(adjective, wrong, fake, false, counterfeit)
2
unreasoned(adjective, irrational, worthless, unacceptable, arbitrary)
2
unreasoning(foolish, unreasonable, irrational, illogical, arbitrary)
2
unsupported
2
untruthful(adjective, wrong, fake, counterfeit, dishonest)
2
unwarranted(adjective, reasoning, unsubstantiated, unsupported, unproven)
2
up(preposition, expired)
2
vile(adjective, bad)
2
weakened(enervated, senescent, irresilient)
2
worthless(adjective, useless, unsound, unfit, trifling)
2
wretched(adjective, bad)
1
off(wrong, false, incorrect, untrue)
1
adulterated(adjective, fake, false, counterfeit, inadequate)
1
all off(expression, wrong, false, incorrect, untrue)
1
all wet(expression, wrong, false, irrational, incorrect)
1
anachronistic(adjective, absurd)
10 years ago|22k views|share |citing 
APASmart Define. (2016). invalid thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/invalid/thesaurus/synonyms
ChicagoSmart Define. 2016. "invalid thesaurus" https://smartdefine.org/invalid/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2016, invalid thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/invalid/thesaurus/synonyms>.
MLASmart Define. "invalid thesaurus" 29 March 2016. Web. 20 September 2026. <https://smartdefine.org/invalid/thesaurus/synonyms>