rigorousness
(noun)
noun
1. something hard to endure
Similar word(s): asperity, grimness, hardship, rigor, rigour, severeness, severity
Definition categories: attribute, difficultness, difficulty
2. excessive sternness
Similar word(s): hardness, harshness, inclemency, rigor, rigour, severeness, severity, stiffness
Definition categories: attribute, sternness, strictness