What does rigorous mean?

Definitions for rigorous
ˈrɪg ər əsrig·or·ous

This dictionary definitions page includes all the possible meanings, example usage and translations of the word rigorous.

Princeton's WordNet

  1. rigorous, strictadjective

    rigidly accurate; allowing no deviation from a standard

    "rigorous application of the law"; "a strict vegetarian"

  2. rigorous, stringent, tightadjective

    demanding strict attention to rules and procedures

    "rigorous discipline"; "tight security"; "stringent safety measures"


  1. Rigorousadjective

    (Mathematics, Logic) Adhering scrupulously and exactly to accepted principles; hence, logically valid; as, a rigorous proof.


  1. rigorousadjective

    Manifesting, exercising, or favoring rigour; allowing no abatement or mitigation; scrupulously accurate; exact; strict; severe; relentless; as, a rigorous officer of justice; a rigorous execution of law; a rigorous definition or demonstration.

  2. rigorousadjective

    Severe; intense; inclement; as, a rigorous winter.

  3. rigorousadjective


Samuel Johnson's Dictionary

  1. Rigorousadjective

    Severe; allowing no abatement.

    Etymology: from rigour.

    He shall be thrown down the Tarpeian rock
    With rigorous hands; he hath resisted law,
    And therefore law shall scorn him further trial,
    Than the severity of publick power. William Shakespeare, Coriolanus.

    Are these terms hard and rigorous, beyond our capacities to perform? John Rogers, Sermons.


  1. rigorous

    Rigour (British English) or rigor (American English; see spelling differences) describes a condition of stiffness or strictness. These constraints may be environmentally imposed, such as "the rigours of famine"; logically imposed, such as mathematical proofs which must maintain consistent answers; or socially imposed, such as the process of defining ethics and law.


  1. rigorous

    Rigorous refers to something that is extremely thorough, careful or precise. It often implies strictness, severity, or a demand for high standards or discipline. It can be used to describe actions, processes, research, studies, or any work that requires detailed attention and effort. For example, a rigorous examination, rigorous standards, or rigorous training.

Webster Dictionary

  1. Rigorousadjective

    manifesting, exercising, or favoring rigor; allowing no abatement or mitigation; scrupulously accurate; exact; strict; severe; relentless; as, a rigorous officer of justice; a rigorous execution of law; a rigorous definition or demonstration

  2. Rigorousadjective

    severe; intense; inclement; as, a rigorous winter

  3. Rigorousadjective


  4. Etymology: [F. rigoureux, LL. rigorosus. See Rigor.]

How to pronounce rigorous?

How to say rigorous in sign language?


  1. Chaldean Numerology

    The numerical value of rigorous in Chaldean Numerology is: 4

  2. Pythagorean Numerology

    The numerical value of rigorous in Pythagorean Numerology is: 5

Examples of rigorous in a Sentence

  1. Jacqueline Glasheen:

    We are doing this not because we don’t think kids need homework, but because we think we are giving kids very rigorous instruction for eight hours.

  2. Celgene Corp -LRB- CELG.O -RRB-:

    These therapies are subjected to rigorous safety controls that have been developed by the company and approved by the FDA.

  3. The US military:

    The U.S. Army takes training seriously and prioritizes the safety of our soldiers, our allies, and civilians. We sincerely apologize to the business and its employees, we always learn from these exercises and are fully investigating the cause of this mistake. We will implement rigorous procedures to clearly define our training areas and prevent this type of incident in the future.

  4. Francis Collins:

    That is the default and certainly the FDA (U.S. Food and Drug Administration) has that particular pathway available. If it is not possible to get the rigorous human data, it is still possible a vaccine could be approved.

  5. Richard Quinton:

    That's why the testes hang down away from the body and have their own special blood cooling system, it's been standard advice given to men in fertility clinics throughout the world that they wear loose fitting underwear and avoid taking hot baths. This study validates some of this advice in a much more rigorous and evidence-based manner.

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Translations for rigorous

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"rigorous." Definitions.net. STANDS4 LLC, 2024. Web. 22 Jun 2024. <https://www.definitions.net/definition/rigorous>.

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