1. A way of behaving or doing things that shows careful attention to detail, high standards, and particular concern about cleanliness, accuracy, or quality
She organized her files in a fastidious manner, with every document perfectly labeled and arranged.
Ela organizou seus arquivos de maneira exigente, com cada documento perfeitamente etiquetado e organizado.
2. A meticulous or scrupulous approach to tasks, especially regarding hygiene or precision
The surgeon worked in a fastidious manner to ensure the utmost sterility during the procedure.
O cirurgião trabalhou de forma meticulosa para garantir a máxima esterilidade durante o procedimento.