Synonyms|227Antonyms|105|Broader|0Narrower|0Related|1.1k

34 entries under unsubstantiated topic. ×

5
uncorroborated(adjective, unwarranted, untrue, flimsy)
5
unproven(adjective, uncertain, doubtful, dubious)
4
unsupported(adjective, unwarranted, untrue, flimsy)
4
unverified(adjective, unsupported, uncorroborated)
2
dubious(adjective, uncertain, doubtful, vague, unsure)
2
invalid(adjective, meaningless, unsupported, annulled)
1
avoided(adjective, meaningless, invalid, unsupported)
1
bad(adjective, meaningless, invalid, unsupported)
1
dead(adjective, meaningless, invalid, unsupported)
1
dubitable(uncertain, doubtful, shaky, dubious, unlikely)
1
fishy(uncertain, doubtful, shaky, dubious, unlikely)
1
forceless(adjective, void, meaningless, invalid)
1
fruitless(adjective, meaningless, invalid, unsupported)
1
ineffective(adjective, meaningless, invalid, unsupported)
1
ineffectual(adjective, meaningless, invalid, unsupported)
1
inoperative(adjective, meaningless, invalid, unsupported)
1
meaningless(adjective, invalid, unsupported, annulled)
1
negated(adjective, meaningless, invalid, unsupported)
1
not viable(expression, adjective, void, meaningless, invalid)
1
nugatory(adjective, meaningless, invalid, unsupported)
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APASmart Define. (2015). unconfirmed thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/unconfirmed/thesaurus/synonyms
ChicagoSmart Define. 2015. "unconfirmed thesaurus" https://smartdefine.org/unconfirmed/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, unconfirmed thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/unconfirmed/thesaurus/synonyms>.
MLASmart Define. "unconfirmed thesaurus" 14 April 2015. Web. 30 September 2026. <https://smartdefine.org/unconfirmed/thesaurus/synonyms>