1. definition: not permitting penetration or passage; impenetrable not permitting penetration or passage; impenetrable incapable of being injured or impaired incapable of being injured or impaired incapable of being influenced, persuaded, or affected incapable of being influenced, persuaded, or affected

2. pronunciation: im-pur-vee-uh s

3. synonyms: impermeable impermeable impenetrable impenetrable impregnable impregnable waterproof waterproof watertight watertight water-resistant water-resistant repellent repellent immune to immune to invulnerable to invulnerable to resistant to resistant to

4. synonyms: adverb adverbimperviously noun noun imperviousness imperviousness

5. Not all sunscreen is impervious to the sun’s burning rays.

6. The castle was impervious to any outside attack.

7. Knowing how to defend yourself does not make you impervious to attack, but it does improve your chances of escaping unharmed.

8. Believing himself impervious to danger, he recklessly dove from the cliff.

9. Imperviousness to sicknesses begins with a healthy lifestyle.

10. The child’s imperviousness to the cold allowed her to play outside for hours.

11. The white rug imperviously repelled the wine that had spilled on it.

12. Julius Caesar imperviously refuses to stay away from the capitol despite several harbingers and auguries. The gods do this in shame of cowardice: Caesar should be a beast without a heart, If he should stay at home to-day for fear. No, Caesar shall not