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adjective rig·or·ous \ˈri-g(ə-)rəs\

: very strict and demanding

: done carefully and with a lot of attention to detail

: difficult to endure because of extreme conditions

Full Definition of RIGOROUS

:  manifesting, exercising, or favoring rigor :  very strict
a :  marked by extremes of temperature or climate
b :  harsh, severe
:  scrupulously accurate :  precise
rig·or·ous·ly adverb
rig·or·ous·ness noun

Examples of RIGOROUS

  1. rigorous enforcement of the rules
  2. a rigorous course of study
  3. We subjected the data to a rigorous analysis.

First Known Use of RIGOROUS

15th century

Synonym Discussion of RIGOROUS

rigid, rigorous, strict, stringent mean extremely severe or stern. rigid implies uncompromising inflexibility <rigid rules of conduct>. rigorous implies the imposition of hardship and difficulty <the rigorous training of recruits>. strict emphasizes undeviating conformity to rules, standards, or requirements <strict enforcement of the law>. stringent suggests severe, tight restriction or limitation <stringent standards of admission>.
RIGOROUS Defined for Kids


adjective rig·or·ous \ˈri-gə-rəs\

Definition of RIGOROUS for Kids

:  very strict <rigorous rules>
:  hard to endure because of extreme conditions :  harsh <rigorous winters>
rig·or·ous·ly adverb


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