1. Uncommon or extraordinary procedures or techniques that deviate from standard practice
The researcher used exceptional methods to conduct the study.
O pesquisador utilizou métodos excepcionais para conduzir o estudo.
2. In legal contexts, special procedures allowed under specific circumstances
The court authorized exceptional methods to gather evidence.
O tribunal autorizou métodos excepcionais para recolher provas.
3. Innovative or unique approaches that differ from conventional wisdom
They adopted exceptional methods to solve the problem.
Eles adotaram métodos excepcionais para resolver o problema.