1. Evidence that is not clear, definitive, or conclusive; proof that lacks certainty or reliability
The witness provided uncertain evidence that did not convince the jury.
A testemunha forneceu evidência incerta que não convenceu o júri.
2. Information or data that is ambiguous or subject to multiple interpretations
The archaeological findings represent uncertain evidence of ancient settlement.
Os achados arqueológicos representam evidência incerta de assentamento antigo.