rigor   (Sound)

The noun rigor has 3 senses

• asperity, grimness, hardship, rigor, rigour, severity, severeness, rigorousness, rigourousness -- (something hard to endure; "the asperity of northern winters")


• cogency, validity, rigor, rigour -- (the quality of being valid and rigorous)


• 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")