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Noun: rigor  ri-gur
Usage: US (elsewhere: rigour)
  1. The quality of being hard to endure, uninviting or formidable
    "the rigor of northern winters";
    - asperity, grimness, hardship, rigour [Brit, Cdn], severity, severeness, rigorousness, rigourousness [Brit, non-standard]
  2. The quality of being valid and rigorous
    - cogency, validity, rigour [Brit, Cdn]
  3. Excessive sternness
    "the rigors of boot camp";
    - severity, severeness, harshness, rigour [Brit, Cdn], rigorousness, rigourousness [Brit, non-standard], inclemency, hardness, stiffness

Sounds like: rigor

Derived forms: rigors

Type of: believability, credibility, credibleness, difficultness, difficulty, sternness, strictness

Encyclopedia: Rigor