impervious Definition

resistant, soundproof, proof, greaseproof, imperviable, ladder-proof, moth-resistant, mothproof, run-resistant, runproof, impermeable, oblivious, immune, unmoved, irrelevant, unsympathetic, leakproof, watertight, indifferent, airtight, weatherproof, immaterial, waterproof, numb, uninterested, uncaring, heartless, fearless, sealed, insensitive, callous, unresponsive, blind, rug, mat, deaf, tight, all-in, cold-hearted, gas-tight, gastight, leak-proof, water-resistant, invulnerable, impenetrable, indestructible, susceptible, impregnable, penetrable, permeable, invincible, unaffected, corrosive, resilient, bulletproof, nonabsorbent, unyielding, insulated, omnipresent, unfazed, unsusceptible, adiathermic, devoid, unperturbed, unruffled, impotent, buffered, infallible, prone, undeterred, indistinguishable, undaunted, unaccommodating, assailable, unperceived, benign, vulnerable, invisible, inescapable, inefficacious, implacable, uncontainable, useless, axiomatic, unrelenting, heedless, pervasive, insulative, unconcerned, retentive, unavoidable, tolerable, conquerable, insuperable, powerless, inalterable, undisturbed, impertransible, amenable, ubiquitous,