What does rigour mean?
Rigour means strictness, precision, and exact adherence to established rules or standards. It is particularly associated with intellectual and academic work, where the quality of an argument, method, or investigation depends on care, consistency, and the avoidance of shortcuts. In British English the word is commonly written rigour, while rigor is the usual American spelling. The term can describe both the quality of a method and the discipline required to use it well: a study may be rigorous because its evidence is assessed carefully and its conclusions follow logically. Rigour can also convey severity, as when someone undergoes the rigours of an exacting training or difficult conditions. Although often complimentary, the word can sometimes suggest excessive strictness or an unwillingness to make exceptions. Its history extends from the physical idea of stiffness to the broader modern sense of uncompromising precision.
nounStrict or exact adherence to principles, standards, methods, or rules. It also refers to intellectual discipline, precision, or the severity of demanding conditions.
- Strict or exact adherence to principles, standards, methods, or rules.
- Intellectual discipline or the quality of being precise, exact, and logically demanding.
- The severity or harshness of conditions, treatment, or experience.
"The study combined imaginative interpretation with a rare degree of rigour."
"The historian's account was praised for its rigour and careful use of evidence."
"The team was not prepared for the rigours of training at high altitude."
The plural is rare; rigour is usually used as an uncountable noun.
"Few journalists are prepared for the rigours of reporting from a conflict zone."
Rigour began as a word for physical stiffness, but its sharpest modern use describes the uncompromising precision of a well-disciplined mind.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does rigour come from?
The English word comes through Old French rigor from Latin rigor, meaning “stiffness” or “rigidity” and, by extension, “strictness.” Its principal development was a shift in emphasis from physical firmness to exact adherence to rules, standards, or intellectual discipline. The same root underlies forms such as rigorous, rigorously, and rigorism, and modern American English generally uses the spelling rigor.
Related word forms
How rigour is actually used
This is chiefly a formal word, especially common in academic, legal, scientific, and evaluative contexts. It can commend exactness and disciplined thinking, but it may also suggest an austere or excessively demanding standard.
Easily confused with rigour
Rigour is the standard British spelling, whereas rigor is the standard American spelling; their meanings are otherwise the same.