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pervious vs. impervious

[pur-vee-uhs] / ˈpɜr vi əs /

adjective

  1. admitting of passage or entrance; permeable.

    pervious soil.

  2. open or accessible to reason, feeling, argument, etc..

    Unfortunately, she was pervious to whatever rationale had been most recently presented.

[im-pur-vee-uhs] / ɪmˈpɜr vi əs /
Also imperviable

adjective

  1. not permitting penetration or passage; impenetrable.

    The coat is impervious to rain.

  2. incapable of being injured or impaired.

    impervious to wear and tear.

  3. incapable of being influenced, persuaded, or affected.

    impervious to reason; impervious to another's suffering.

    Synonyms:
    closed , invulnerable