noun ·see 1st rigor, 2.
2. rigor ·noun rigidity; stiffness.
3. rigor ·noun violence; force; fury.
4. rigor ·noun the becoming stiff or rigid; the state of being rigid; rigidity; stiffness; hardness.
5. rigor ·noun severity of life; austerity; voluntary submission to pain, abstinence, or mortification.
6. rigor ·noun severity of climate or season; inclemency; as, the rigor of the storm; the rigors of winter.
7. rigor ·noun stiffness of opinion or temper; rugged sternness; hardness; relentless severity; hard-heartedness; cruelty.
8. rigor ·noun a sense of chilliness, with contraction of the skin; a convulsive shuddering or tremor, as in the chill preceding a fever.
9. rigor ·noun 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.