Impervious
Impervious adjective - Not admitting of passage or capable of being affected.
Usage example: a material impervious to water
Proof is a synonym for impervious in characteristic topic. In some cases you can use "Proof" instead an adjective "Impervious", when it comes to topics like unaffected, resist. popular alternative
Nearby Word: imperviously
Proof
Proof adjective - (used in combination or as a suffix) able to withstand.
Usage example: “temptation-
proof”
Impervious is a synonym for proof in characteristic topic. You can use "Impervious" instead an adjective "Proof", if it concerns topics such as resist, resistant. popular alternative
Mutual synonyms
Related pairs
Both words in one sentence
- Even worse, since his armor is shrapnel/explosion proof as well, players might think he would also be impervious to the tail rotor.
Source: Guide Dang It / Action -
Bullet Proof Vest: Keenbean's impervious spray turns any clothing into this, as well as making it dirtproof, stainproof, and waterproof.
Source: Film / Richie Rich -
Armor of Invincibility: Bean Bandit's Bullet Proof Jacket is completely impervious to handgun rounds, and it's allowed him to survive salvos of nearly everything from shotgun slugs to armor-piercing rifle fire.
Source: Manga / Gunsmith Cats
Cite this Source
Proof and Impervious. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/impervious/proof
Impervious & Proof. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/impervious/proof>.
Proof or Impervious. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/impervious/proof.
Google Ngram Viewer shows how "impervious" and "proof" have occurred on timeline