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Unsubstantiated has 28 synonyms. The top synonyms for unsubstantiated are groundless, inconclusive, indecisive, not following, not proved, unattested, unauthenticated, uncertified and 20 more. Another word for unsubstantiated is groundless. Browse the full list below.
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| Random | DefinitionA common synonym for unsubstantiated is groundless. Other synonyms include inconclusive, indecisive, not following, not proved.
Unsubstantiated has 28 synonyms listed on Thesaurasize.
(adj): lacking substantiation; without evidence
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