impervious [im-pur -vee-uh s]
Synonyms Word Origin
See more synonyms for impervious on Thesaurus.com not permitting penetration or passage; impenetrable: The coat is impervious to rain. incapable of being injured or impaired: impervious to wear and tear. incapable of being influenced, persuaded, or affected: impervious to reason; impervious to another's suffering. Show More
Also
im·per·vi·a·ble [im-pur -vee-uh -buh l] /ɪmˈpɜr vi ə bəl/ .
Origin of impervious From the
Latin word
impervius, dating back to
1640–50. See
im-2 ,
pervious Related forms im·per·vi·ous·ly , adverb im·per·vi·ous·ness , noun Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Related Words for impervious impenetrable ,
resistant ,
invulnerable ,
inaccessible ,
immune ,
unmoved ,
unaffected ,
impassable ,
hermetic ,
impassive ,
impermeable ,
sealed ,
tight ,
unapproachable ,
unreceptive ,
watertight British Dictionary definitions for impervious not able to be penetrated, as by water, light, etc; impermeable (often postpositive foll by to ) not able to be influenced (by) or not receptive (to) impervious to argument Show More
Derived Forms imperviously , adverb imperviousness , noun Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for impervious adj. 1640s, from Latin impervius "that cannot be passed through," from assimilated form of in- "not, opposite of" (see in- (1)) + pervius "letting things through," from per "through" + via "road." Related: Imperviously ; imperviousness .
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Online Etymology Dictionary, © 2010 Douglas Harper
