rigourousness

noun

1. excessive sternness
   1. severity of character
   2. the harshness of his punishment was inhuman
   3. the rigors of boot camp

   Synonym:    severityseverenessharshnessrigorrigourrigorousnessinclemencyhardnessstiffness

2. something hard to endure
   1. the asperity of northern winters

   Synonym:    asperitygrimnesshardshiprigorrigourseverityseverenessrigorousness