Definition of unconfirmed adjective from the Oxford Advanced American Dictionary

 

unconfirmed

 adjective
adjective
NAmE//ˌʌnkənˈfərmd//
 
 
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that has not yet been proved to be true or confirmed unconfirmed rumors Unconfirmed reports said that at least six people had been killed.
See the Oxford Advanced Learner's Dictionary entry: unconfirmed