permeable — English Dictionary

Adjective

1. Able to be permeated; absorbing or allowing the passage of fluids.

   Synonyms

   water-permeable

   Antonyms

   impermeableimperviousnonpermeable

   Examples

   permeable strata

   Rainwater sinks through permeable rock to form an underground reservoir.

   More examples (1)

   One hundred thirty-one small, highly permeable masonry wall specimens built of concrete blocks or of bricks were treated with cement-water paints or with other waterproofings.

2. Allowing the passage of persons, information, or other things, especially when such passage occurs despite hopes or expectations otherwise.

   Usage

   • broadly

   Synonyms

   penetrable

   Antonyms

   impermeableimpenetrablenonpermeable

   Examples

   permeable borders

   permeable boundaries

Adjective

1. allowing fluids or gases to pass or diffuse through

   Antonyms

   impermeable

   Examples

   permeable membranes

   rock that is permeable by water