impervious

English

Etymology

From Latin impervius (“cannot be passed through”), from in- (“not”) + pervius (“letting things through”)

Pronunciation

• (UK) IPA: /ɪmpɜviɛs/ (US) IPA: /ɪmˈpɝ.vi.əs/
• Rhymes: -ɜː(r)viəs

Adjective

impervious (comparative more impervious, superlative most impervious)

1. unaffected or unable to be affected by

   The man was completely impervious to the deception we were trying.

2. preventative of any penetration; impenetrable, impermeable, particularly of water

   Although patchworked and sagging, the roof proved impervious to the weather.

3. immune to damage or effect

   The old car seemed to be impervious to the wear and tear of age.

Antonyms

• pervious

Derived terms

• imperviously
• imperviousness

Translations

unaffected or unable to be affected by

• Dutch: onvatbaar (nl), ongevoelig (nl),
• French: immunisé (fr), insensible (fr),
• German: gleichgültig (de), unempfindlich (de)
• Hungarian: megingathatatlan (hu)

• Russian: непроницаемый (ru) (n'epronicájemyj) , невосприимчивый (ru) (n'evospriímčivyj) , неуязвимый (ru) (n'eujazvímyj) 
• Turkish: etkilenmez (tr)

preventative of any penetration; impenetrable, impermeable

• Dutch: ondoordringbaar (nl), ondoorlaadbaar (nl),
• French: impénétrable (fr), imperméable (fr),
• German: undurchlässig (de)
• Hungarian: áthatolhatatlan (hu)

• Italian: impermeabile (it)
• Portuguese: impenetrável (pt)
• Russian: непроницаемый (ru) (n'epronicájemyj) 
• Turkish: geçirmez (tr), su geçirmez (tr)

immune to damage or effect

• Dutch: onkwetsbaar (nl), ongevoelig (nl),
• French: intouchable (fr), insensible (fr),
• German: undurchdringlich (de), undurchdringbar (de)

• Hungarian: ellenálló (hu)
• Russian: невосприимчивый (ru) (n'evospriímčivyj) , неуязвимый (ru) (n'eujazvímyj) 
• Turkish: dayanıklı (tr)