1. Evidence that supports, confirms, or corroborates a claim, allegation, or assertion; proof that validates or demonstrates the truth of something
The detective presented substantiating evidence that linked the suspect to the crime scene.
O detetive apresentou prova substantiva que conectava o suspeito à cena do crime.
2. In legal or formal contexts, evidence that provides material support for an argument or position
The lawyer required substantiating evidence before proceeding with the lawsuit.
O advogado exigiu prova substantiva antes de prosseguir com a ação judicial.