3
inapplicable(adjective, useless, unfit)
3
incapacitated(adjective, useless, unfit)
3
ludicrous(adjective, foolish, fantastic, absurd)
3
mistaken(adjective, wrong, fake, false, counterfeit)
3
nonsensical(adjective, wrong, foolish, stupid, crazy)
3
nullified(adjective, meaningless, unsubstantiated, unsupported, annulled)
3
outpatient(noun, case, subject, patient, casualty)
3
paraplegic
3
peaked(adjective, mean, weak, sick, green)
3
poor(adjective, bad, inadequate, ineffective, ineffectual)
3
preposterous(adjective, foolish, unreasonable, absurd, irrational)
3
ridiculous(adjective, foolish, unreasonable, absurd, illogical)
3
self-contradictory(adjective, absurd)
3
silly(adjective, foolish, unreasonable, absurd, irrational)
3
stupid(adjective, wrong, foolish, crazy, unreasonable)
3
unsatisfactory(adjective, bad, poor, inadequate, ineffective)
3
unwell(adjective, mean, weak, sick, green)
3
valetudinary(adjective, disease)
3
weakling
2
absonant
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>