1. Clear, direct, and unambiguous permission or consent given in express terms
The project requires explicit approval from the board of directors before proceeding.
O projeto requer aprovação explícita da diretoria antes de prosseguir.
2. Formal authorization that is stated clearly without any doubt or implicit understanding
We obtained explicit approval in writing from all stakeholders.
Obtivemos aprovação explícita por escrito de todas as partes interessadas.