impervious
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About Our Definitions: All forms of a word (noun, verb, etc.) are now displayed on one page.im·per·vi·ous
adjective \(ˌ)im-ˈpər-vē-əs\Definition of IMPERVIOUS
1
a : not allowing entrance or passage : impenetrable <a coat impervious to rain> b : not capable of being damaged or harmed <a carpet impervious to rough treatment>
2
: not capable of being affected or disturbed <impervious to criticism>
— im·per·vi·ous·ly adverb
— im·per·vi·ous·ness noun
See Examples of IMPERVIOUS
- <the material for this coat is supposed to be impervious to rain>
- <the rain forest is impervious to all but the most dedicated explorers>
- … Berlin struck me, above all, as impervious to any political reactions whatever … —Stephen Spender, New York Times Magazine, 30 Oct.1977
- He looked at her, impervious to her tears … —Jean Stafford, Children Are Bored on Sunday, (1945) 1953
- … the trunk … is encased in so hard a bark, as to be almost impervious to a bullet … —Herman Melville, Omoo, 1847
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Origin of IMPERVIOUS
Latin impervius, from in- + pervius pervious
First Known Use: 1640
Related to IMPERVIOUS
- Synonyms
- impenetrable, impermeable, tight
- Antonyms
- penetrable, permeable, pervious
im·per·vi·ous
adjective \(ˈ)im-ˈpər-vē-əs\ (Medical Dictionary)Medical Definition of IMPERVIOUS
: not allowing entrance or passage <medication packaged in a container impervious to air and light>
—im·per·vi·ous·ness noun
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