impervious

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“
Clarence Glyndon--impervious, unconscious, unailing, impenitent--was in noisy spirits, and talked for three Poor Mervale!

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Definitions (6)

Toggle American Heritage definitions American Heritage Dictionary (2)

  1. adjective Incapable of being penetrated: a material impervious to water.
  2. adjective Incapable of being affected: impervious to fear.

Toggle Century definitions Century Dictionary (2)

Toggle GNU Webster definitions GNU Webster's 1913 (1)

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Examples (50)

  • The high ridges and deep furrows, to be seen on the heavy arable lands of the Vale of Evesham, are a source of wonderment to people who come from light land districts, and who do not recognize how impervious is the subsoil to the penetration of water. —  Grain and Chaff from an English Manor
  • She was very good looking and my secretary is not ah--impervious--to externals, so he allowed her quite a long interview with me The Secretary's eyes twinkled and young Allen laughed. —  Still Jim
  • The object of this preliminary operation is to render the wood impervious, and therefore to prevent the sensitizing solution to penetrate its texture. —  Photographic Reproduction Processes
  • That barrier in the ether seems impervious, and if so, it could not transmit a blow. —  Skylark Three
  • The sugar-cane is his great delight, both as being his favourite food and as affording a high, impervious, and unfrequented situation. —  Natural History of the Mammalia of India and Ceylon
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Roget's II: The New Thesaurus, Third Edition by the Editors of the American Heritage® Dictionary. Copyright © 2003, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Etymologies (2)

Toggle American Heritage etymologies American Heritage Dictionary (1)

  1. From Latin impervius : in-, not; see in-1 + pervius, pervious; see pervious.

Toggle Century etymologies Century Dictionary (1)

  1. = Spanish Portuguese Italian impervio, from Latin impervius, inpervius, that cannot be passed through, from in- privative + pervius, that can be passed through: see pervious.
 

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/ɪmˈpərvɪəs/
by American Heritage

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