imperviable

Definitions of imperviable
  1. adjective
    not admitting of passage or capable of being affected
    synonyms: impervious
    impermeable
    preventing especially liquids to pass or diffuse through
    fast
    resistant to destruction or fading
    acid-fast
    not easily decolorized by acid solutions; pertains to micro-organisms (especially the tubercle bacillus that causes tuberculosis)
    colorfast
    having color that is resistant to fading or running
    greaseproof
    resistant to penetration by grease or oil or wax
    moth-resistant, mothproof
    resistant to damage by moths
    proof
    (used in combination or as a suffix) able to withstand
    resistant
    impervious to being affected
    corrosion-resistant
    impervious to corrosion
    rot-resistant
    resistant to rotting
    ladder-proof, run-resistant, runproof
    (of hosiery) resistant to runs or (in Britain) ladders
    soundproof
    impervious to, or not penetrable by, sound
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