Antonyms of adj pervious

1 sense of pervious

Sense 1
pervious (vs. impervious) -- (admitting of passage or entrance; "pervious soil"; "a metal pervious to heat")

impervious (vs. pervious), imperviable -- (not admitting of passage or capable of being affected; "a material impervious to water"; "someone impervious to argument")
        => fast -- (resistant to destruction or fading; "fast colors")
        => 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; "greaseproof wrapping paper")
        => mothproof, moth-resistant -- (resistant to damage by moths)
        => proof (predicate) -- ((used in combination or as a suffix) able to withstand; "temptation-proof"; "childproof locks")
        => resistant -- (impervious to being affected; "resistant to the effects of heat"; "resistant to persuasion")
        => corrosion-resistant -- (impervious to corrosion; "he was a great believer in the corrosion-resistant qualities of cast iron")
        => rot-resistant -- (resistant to rotting)
        => runproof, ladder-proof, run-resistant -- ((of hosiery) resistant to runs or (in Britain) ladders)
        => soundproof -- (impervious to, or not penetrable by, sound; "a soundproof room")

Similarity of adj pervious

1 sense of pervious

Sense 1
pervious (vs. impervious) -- (admitting of passage or entrance; "pervious soil"; "a metal pervious to heat")
       => receptive -- (open to arguments, ideas, or change; "receptive to reason and the logic of facts")
          Also See-> permeable#1