rigorous
adj.adj. describing something that is very thorough, strict, and careful. You use this when a process or test is done with high standards to make sure everything is correct.
adj. characterised by strict adherence to standards, thoroughness, and exhaustive attention to detail. Often describes intellectual, scientific, or physical processes that demand high levels of accuracy or discipline.
The students underwent rigorous training before the final exam.
The new medication passed a rigorous testing process to ensure it was safe for public use.
Academic journals require a rigorous peer-review process to maintain the integrity of the research they publish, ensuring that only the most robust findings reach the scientific community.
Inherited from Middle English rigorous, from Middle French and Anglo-Norman rigoreus, derived from Late Latin rigōrōsus (stiff, rigid; inflexible). By surface analysis, rigor + -ous.
Commonly modifies nouns related to processes, such as 'testing', 'standards', 'analysis', or 'training'.