1. Systematic, thorough, and precise approaches or procedures that follow strict standards and exacting principles
The research team employed rigorous methods to ensure the validity of their findings.
A equipe de pesquisa empregou métodos rigorosos para garantir a validade de seus resultados.
2. Academic or scientific procedures characterized by careful attention to detail and adherence to established protocols
Rigorous methods in clinical trials are essential for drug approval.
Métodos rigorosos em ensaios clínicos são essenciais para a aprovação de medicamentos.