What does uncorroborated mean?
Uncorroborated describes a statement, account, allegation, or piece of information that lacks independent support or confirmation. The word is commonly used in journalism, legal contexts, academic research, and official investigations. It is more specific than simply calling something unconfirmed: an uncorroborated claim has not been strengthened or verified by other witnesses, documents, records, or reliable sources. This does not mean that the claim is necessarily false; it means that available evidence has not established it. For example, a witness may provide an uncorroborated description of an event that later proves accurate, but at the time no other source confirms the account. The term is useful because it distinguishes unsupported information from both established fact and proven fabrication. Its tone is formal and evaluative, and it often signals that a claim requires further investigation before it should be treated as reliable.
adjectiveNot supported by independent evidence, testimony, or confirmation. An uncorroborated claim or account has not been verified by other reliable sources.
- Not supported or confirmed by independent evidence, testimony, or corroboration.
"The newspaper declined to publish the witness's uncorroborated account of the incident."
"The authorities treated the uncorroborated allegation as unproven and continued their investigation."
"Although several witnesses gave similar accounts, the research remained uncorroborated by documents or other independent evidence."
An uncorroborated story may sound true, but evidence is what turns a claim into a fact.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does uncorroborated come from?
Uncorroborated was formed in English in the early 17th century by adding the negative prefix un- to corroborated. Corroborate derives from Latin corroborare, meaning “to strengthen, support, or confirm,” with its sense of confirmation developing in English during the early 17th century. Related English forms include corroboration, corroborated, and corroborating, all sharing the same Latin foundation.
Related word forms
How uncorroborated is actually used
This is a formal and especially journalistic, legal, and academic word. It indicates insufficient evidential support without necessarily asserting that the claim is false.
Easily confused with uncorroborated
Unconfirmed means that something has not yet been verified, whereas uncorroborated specifically emphasizes the absence of independent supporting evidence.