Impervious
[adj] not admitting of passage or capable of being affected; "a material impervious to water"; "steel impervious to bullets"; "someone impervious to argument"
Related Information
Related Terms
airtight, ballproof, beyond reach, bombproof, bulletproof, burglarproof, callous, calloused, case-hardened, closed forever to, closed to, corrosionproof, dampproof, fireproof, fire-resisting, flameproof, flinty, foolproof, hard, hardened, hardhearted, her