1. A final court decision that cannot be appealed or modified, representing the conclusive determination of a legal matter
The appellate court issued a definitive judgment that settled the dispute once and for all.
O tribunal de apelação proferiu uma sentença definitiva que resolveu a disputa de uma vez por todas.
2. An authoritative and conclusive opinion or determination on a matter
The expert's definitive judgment on the authenticity of the painting ended the controversy.
O julgamento definitivo do especialista sobre a autenticidade da pintura encerrou a controvérsia.