1. 严厉：severely /严厉地/严重地/ | severeness /严厉/ | severity /严格/严重/激烈/严酷/简朴/雅致/严厉/
noun
1. excessive sternness
e.g. severity of character
the harshness of his punishment was inhuman
the rigors of boot camp
Synonym: severityharshnessrigorrigourrigorousnessrigourousnessinclemencyhardnessstiffness
2. extreme plainness
Synonym: austerenessseverity
3. something hard to endure
e.g. the asperity of northern winters
Synonym: asperitygrimnesshardshiprigorrigourseverityrigorousnessrigourousness
4. used of the degree of something undesirable e.g. pain or weather