rigour (
http://definr.com/rigour)
n 1: the quality of being logically valid [syn:
cogency,
validity,
rigor]
2: something hard to endure; "the asperity of northern winters"
[syn:
asperity,
grimness,
hardship,
rigor,
severity,
rigorousness]
3: excessive sternness; "severity of character"; "the harshness
of his punishment was inhuman"; "the rigors of boot camp"
[syn:
severity,
harshness,
rigor,
inclemency,
hardness,
stiffness]