Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun rigour

3 senses of rigour

Sense 1
cogency, validity, rigor, rigour -- (the quality of being valid and rigorous)
       => credibility, credibleness, believability -- (the quality of being believable or trustworthy)

Sense 2
asperity, grimness, hardship, rigor, rigour, severity, severeness, rigorousness, rigourousness -- (something hard to endure; "the asperity of northern winters")
       => difficulty, difficultness -- (the quality of being difficult; "they agreed about the difficulty of the climb")

Sense 3
severity, severeness, harshness, rigor, rigour, rigorousness, rigourousness, inclemency, hardness, stiffness -- (excessive sternness; "severity of character"; "the harshness of his punishment was inhuman"; "the rigors of boot camp")
       => sternness, strictness -- (uncompromising resolution)