What does impervious mean?

Definitions for impervious
ɪmˈpɜr vi əsim·per·vi·ous

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

Princeton's WordNet

  1. impervious, imperviableadjective

    not admitting of passage or capable of being affected

    "a material impervious to water"; "someone impervious to argument"


  1. imperviousadjective

    unaffected or unable to be affected by

    The man was completely impervious to the deception we were trying.

  2. imperviousadjective

    preventative of any penetration; impenetrable, impermeable, particularly of water

    Although patchworked and sagging, the roof proved impervious to the weather.

  3. imperviousadjective

    immune to damage or effect

    The old car seemed to be impervious to the wear and tear of age.

  4. Etymology: From impervius, from in- + pervius

Samuel Johnson's Dictionary

  1. IMPERVIOUSadjective

    Etymology: impervius, Latin.

    We may thence discern of how close a texture glass is, since so very thin a film proved so impervious to the air, that it was forced to break the glass to free itself. Boyle.

    Lest the difficulty of passing back
    Stay his return, perhaps, over this gulf
    Impassable, impervious; let us try
    To found a path from hell to that new world. John Milton.

    The cause of reflexion is not the impinging of light on the solid or impervious parts of bodies. Isaac Newton, Opt.

    A great many vessels are, in this state, impervious by the fluids. Arbuthnot.

    From the damp earth impervious vapours rise,
    Increase the darkness, and involve the skies. Alexander Pope.

    A river's mouth impervious to the wind,
    And clear of rocks. Alexander Pope, Odyssey.


  1. impervious

    Permeability in fluid mechanics and the Earth sciences (commonly symbolized as k) is a measure of the ability of a porous material (often, a rock or an unconsolidated material) to allow fluids to pass through it.

Webster Dictionary

  1. Imperviousadjective

    not pervious; not admitting of entrance or passage through; as, a substance impervious to water or air

How to pronounce impervious?

How to say impervious in sign language?


  1. Chaldean Numerology

    The numerical value of impervious in Chaldean Numerology is: 7

  2. Pythagorean Numerology

    The numerical value of impervious in Pythagorean Numerology is: 3

Examples of impervious in a Sentence

  1. Erik Pevernagie:

    We have got to let loose sometimes, rather than indulging intractably in self-harm or self-mistreatment, by pursuing impervious dreams. ( « Les choses avaient enfin perdu leur pesanteur » )

  2. Lisa Lapin:

    The buildings are impervious to fire from the outside and they're constructed to be basically fire proof, evacuating the art would put it at greater danger. There's no need to move it, it's very, very safe.

  3. Mike Smith:

    We're trying to find those companies that are impervious to what's going on right now.

  4. Angela Berry:

    I like to think it’ll make a difference. But I think everybody is not impervious to the fact that this is political.

  5. Kimano M. Edwards:

    A life dedicated to service is impervious to cynics and immune to regret.

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Translations for impervious

From our Multilingual Translation Dictionary

  • منيعArabic
  • nepropustnýCzech
  • uigennemtrængeligDanish
  • undurchdringlich, gleichgültig, undurchdringbar, undurchlässig, unempfindlichGerman
  • αδιαπέραστοςGreek
  • impermeableSpanish
  • غیر قابل نفوذPersian
  • läpäisemätFinnish
  • imperméable, immunisé, insensible, impénétrable, intouchableFrench
  • प्रबलHindi
  • áthatolhatatlan, ellenálló, megingathatatlanHungarian
  • tahanIndonesian
  • impermeabile, impervioItalian
  • אָטוּםHebrew
  • 不浸透性のJapanese
  • 통하지 않는Korean
  • quibus aditus intercludaturLatin
  • pītongatongaMāori
  • onvatbaar, onkwetsbaar, ondoorlaadbaar, ondoordringbaar, ongevoeligDutch
  • ugjennomtrengeligNorwegian
  • nieprzepuszczalnyPolish
  • impenetrável, impermeável, impérvioPortuguese
  • impenetrabil, insensibil, impermeabilă, indiferent, impermeabilRomanian
  • неуязвимый, невосприимчивый, непроницаемыйRussian
  • ogenomträngligSwedish
  • பாதிக்கப்படாதவர்Tamil
  • ప్రవేTelugu
  • ไม่อนุญาตThai
  • geçirmez, dayanıklı, etkilenmez, su geçirmezTurkish
  • непроникнийUkrainian
  • ناقابل یقینUrdu
  • không thấmVietnamese
  • imperviousYiddish
  • 抗滲Chinese

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"impervious." Definitions.net. STANDS4 LLC, 2023. Web. 4 Jun 2023. <https://www.definitions.net/definition/impervious>.

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    difficult to describe
    • A. elusive
    • B. articulate
    • C. ravening
    • D. foreordained

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