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impermanent
impermeable
impermissible
impersonal
impersonalize
impersonate
impertinent
imperturbable
impervious
impetigo
impetuosity
impetuous
impetus
impi
impiety
imping
impinge
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impervious
impervious [ im púrvi əss ]


adjective 
Definition:
 
1. not responsive: remaining unmoved and unaffected by other people's opinions, arguments, or suggestions
The directors were impervious to the growing resentment among the staff.
2. not letting something through: not allowing passage into or through something
impervious to damp
[Mid-17th century. < Latin impervius< pervius (see pervious)]

imperviously adverb
imperviousness noun
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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