Impervious Definition

ĭm-pûrvē-əs

adjective

Incapable of being passed through or penetrated.

A fabric impervious to moisture.

Webster's New World

Not affected by.

A garden chair impervious to the elements.

Webster's New World

Able to withstand; not susceptible.

Polar bears impervious to the cold, a poet impervious to criticism.

Webster's New World

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

Wiktionary

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

Wiktionary

Synonyms:

Antonyms:

Origin of Impervious

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

From Wiktionary
From Latin impervius in- not in–¹ pervius pervious pervious

From American Heritage Dictionary of the English Language, 5th Edition

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