[n] excessive sternness; "severity of character"; "the harshness of his punishment was inhuman"; "the rigors of boot camp"
[n] something hard to endure; "the asperity of northern winters"
[n] the quality of being logically valid
Synonyms
asperity, cogency, grimness, hardness, hardship, harshness, inclemency, rigorousness, rigour, severity, stiffness, validity