pervious

Synonyms

permeable

allowing fluids or gases to pass or diffuse through

receptive

open to arguments, ideas, or change

Antonyms:

imperviable, impervious

not admitting of passage or capable of being affected

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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