1. A careful, detailed, and thorough examination or investigation of something, paying attention to every small detail
The researcher conducted a meticulous study of the ancient manuscript.
O pesquisador realizou um estudo minucioso do manuscrito antigo.
2. An in-depth analysis or review that leaves no aspect unexplored
After a meticulous study of the data, they reached their conclusions.
Após um estudo minucioso dos dados, chegaram às suas conclusões.