uncorroborated
Without supporting evidence
Uncorroborated describes claims, accounts, or evidence that lack independent confirmation or supporting testimony.
An uncorroborated allegation rests on one person's word alone.
The term appears frequently in legal and journalistic contexts, where verification matters: The story remained uncorroborated by other witnesses.
Not yet proven true
- unsubstantiatedWithout supporting evidence
- unsupportedLacking backing or proof
- unauthenticatedNot proven genuine
- unprovenNot yet established
undocumented · untested · unconfirmed · unchecked · unvalidated · circumstantial · anecdotal · inadmissible
Unverified secondhand information
- gossipInformal talk spreading rumors
- scuttlebuttInformal rumor or speculation
- whisperSpeech without full voice
- innuendoOblique disparaging remark
tittle-tattle · buzz · grapevine · word-of-mouth · chatter · rumor mill · speculation · talk
Assertion lacking proof
- assertionConfident statement of fact
- testimonySworn statement as evidence
- statementExpressed claim or fact
- accusationClaim someone did wrong
charge · contention · declaration · account · report · affidavit · deposition · witness statement
Guess from limited facts
- hypothesisTestable proposed explanation
- suppositionBelief without proof
- guessworkConclusions drawn without proof
- assumptionUnverified belief accepted as true
inference · presumption · theorizing · surmise · postulation · extrapolation · speculation · tentative
Of uncertain validity
- suspectBelieve to be likely
- doubtfulUncertain of truth
- unreliableNot consistently performing
- untrustworthyNot deserving of confidence
sketchy · fishy · shaky · uncertain · iffy · disputable · contestable · debatable
unverified
Not yet proven true
- unsubstantiatedWithout supporting evidence
- unsupportedLacking backing or proof
- unauthenticatedNot proven genuine
unproven · undocumented · untested · unconfirmed · unchecked · unvalidated · circumstantial · anecdotal · inadmissible · questionable
hearsay
Unverified secondhand information
- gossipInformal talk spreading rumors
- scuttlebuttInformal rumor or speculation
- whisperSpeech without full voice
innuendo · tittle-tattle · buzz · grapevine · word-of-mouth · chatter · rumor mill · speculation · talk · murmur
allegation
Assertion lacking proof
- assertionConfident statement of fact
- testimonySworn statement as evidence
- statementExpressed claim or fact
accusation · charge · contention · declaration · account · report · affidavit · deposition · witness statement · complaint
conjecture
Guess from limited facts
- hypothesisTestable proposed explanation
- suppositionBelief without proof
- guessworkConclusions drawn without proof
assumption · inference · presumption · theorizing · surmise · postulation · extrapolation · speculation · tentative · provisional
questionable
Of uncertain validity
- suspectBelieve to be likely
- doubtfulUncertain of truth
- unreliableNot consistently performing
untrustworthy · sketchy · fishy · shaky · uncertain · iffy · disputable · contestable · debatable · controversial
uncorroboratedcorroborated
Confirmed as true
confirmed · verified · substantiated · supported · validated
uncorroboratedproven
Established as fact
established · demonstrated · true · certain · reliable