1. extremely thorough, careful, and precise
The research underwent rigorous testing before publication.
A pesquisa foi submetida a testes rigorosos antes da publicação.
2. strict and demanding; allowing no exceptions
The company maintains rigorous standards for quality control.
A empresa mantém padrões rigorosos de controle de qualidade.
3. characterized by harsh or severe conditions
The rigorous climate of the mountain region makes farming difficult.
O clima rigoroso da região montanhosa torna a agricultura difícil.