English Explanatory Dictionary

impervious

English dictionary entry

Meanings

adj
  1. Unaffected or unable to be affected by something.
  2. Preventive of any penetration; impenetrable, impermeable, particularly of water.
  3. Immune to damage or effect.

Pronunciation

/ɪmˈpɜːvi.əs/ /ɪmˈpɝ.vi.əs/ en-us-impervious.ogg

Word forms

impervious more impervious most impervious

Etymology

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

Antonyms

pervious

Derived words

imperviously imperviousness impervium
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