rigorous
/ˈɹɪɡəɹəs/
Proposed by a contributor, not yet supported by evidence.
Sense 1
Meaning · English
Showing, causing, or favoring rigour/rigor; scrupulously accurate or strict; thorough.
Adjective
Examples
a rigorous officer of justice
Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01)
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).
Sense 2
Meaning · English
Severe; intense.
Adjective
Examples
a rigorous winter
Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01)
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).
Common questions
What does “rigorous” mean?
Showing, causing, or favoring rigour/rigor; scrupulously accurate or strict; thorough.
Is “rigorous” formal or informal?
No register label has been reviewed yet — treat it as neutral and check the usage notes above.