1. Evidence or proof that lacks a solid basis, foundation, or credible support; evidence that is not grounded in fact or reliable sources
The court dismissed the case because the prosecution presented only unfounded evidence.
O tribunal rejeitou o caso porque a acusação apresentou apenas prova infundada.
2. In legal context, evidence that cannot be substantiated or verified through credible means
His claims were based on unfounded evidence and hearsay.
Suas alegações foram baseadas em prova infundada e boatos.