- unsubstantiated as an adjective:
- 1
unsubstantiated
adjective
1 unsubstantiated
Unsupported by other evidence.
synonym: uncorroborated.
Moby thesaurus: groundless, inconclusive, indecisive, not following, not proved, unascertained, unattested, unauthenticated, uncertified, unconfirmed, uncorroborated, undemonstrated, undetermined, unestablished, unfixed, unfounded, unproved, unproven, unsettled, unshown ... show more.
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