1. A final or conclusive modification to a document, law, or agreement that cannot be further altered or reversed without a new formal process
The definitive amendment to the constitution was ratified by all member states.
A emenda definitiva à constituição foi ratificada por todos os estados membros.
2. In legal contexts, an amendment that establishes a permanent change to legislation or contractual terms
After months of negotiation, the parties signed the definitive amendment to their contract.
Após meses de negociação, as partes assinaram a emenda definitiva ao seu contrato.