asperity, grimness, hardship, rigor, rigour, severity, severeness, rigorousness, rigourousness(noun)
something hard to endure
"the asperity of northern winters"
cogency, validity, rigor, rigour(noun)
the quality of being valid and rigorous
severity, severeness, harshness, rigor, rigour, rigorousness, rigourousness, inclemency, hardness, stiffness(noun)
"severity of character"; "the harshness of his punishment was inhuman"; "the rigors of boot camp"
an abbreviated form of rigor mortis.
a sense of chilliness, with contraction of the skin; a convulsive shuddering or tremor, as in the chill preceding a fever
the becoming stiff or rigid; the state of being rigid; rigidity; stiffness; hardness
see 1st Rigor, 2
severity of climate or season; inclemency; as, the rigor of the storm; the rigors of winter
stiffness of opinion or temper; rugged sternness; hardness; relentless severity; hard-heartedness; cruelty
exactness without allowance, deviation, or indulgence; strictness; as, the rigor of criticism; to execute a law with rigor; to enforce moral duties with rigor; -- opposed to lenity
severity of life; austerity; voluntary submission to pain, abstinence, or mortification
violence; force; fury
Origin: [L. See Rigor., below.]
Chambers 20th Century Dictionary
rī′gur, n. the same as Rigour: (med.) a sense of chilliness with contraction of the skin, a preliminary symptom of many diseases.—n. Rī′gor-mor′tis, the characteristic stiffening of the body caused by the contraction of the muscles after death.
The numerical value of rigor in Chaldean Numerology is: 6
The numerical value of rigor in Pythagorean Numerology is: 4