| 单词 | impervious |
| 释义 | impervious —imperviously, adv. —imperviousness, n. /im perr"vee euhs/, adj. 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. Also, imperviable /im perr"vee euh beuhl/. [1640-50; < L impervius. See IM-2, PERVIOUS] Syn. 3. invulnerable, closed. |
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