IMPERVIOUS
(adj.) not admitting of passage or capable of being affected
"a material impervious to water", "someone impervious to argument"
synonyms : imperviable
WordNet® 3.0, © 2006 by Princeton University.
Mnemonics
(Tag: ) impervious = im-'not' + per-'completely' + vious 'via'[old] => not (completely via) => impossible to penetrate
added by pateheo
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(Tag: English) impervious; here,{pervious= perversion}, thus im-pervious= which cannot be perversed with therefore which cannot be damaged or penetrated
added by chandrima
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(Tag: hindi) im(not)+pravesh(enter) so unpenetrable...
added by studyabroad.us
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