im·per·me·a·ble ( m-pûr m - -bl)adj. Impossible to permeate: an impermeable membrane; an impermeable border. im·per  me·a·bili·ty, im·perme·a·ble·ness n.im·per me·a·bly adv. |
impermeable
Adjective
(of a substance) not allowing fluid to pass through: an impermeable layer
impermeability n
| impermeable (m-pûrm--bl) Relating to a material through which substances, such as liquids or gases, cannot pass. Some substances, such as some types of contact lenses, are permeable to gas but impermeable to liquid. |
ThesaurusLegend: Synonyms Related Words Antonyms
| Adj. | 1. | impermeable - preventing especially liquids to pass or diffuse through; "impermeable stone"; "an impermeable layer of scum"; "a coat impermeable to rain" tight - of such close construction as to be impermeable; "a tight roof"; "warm in our tight little house" imperviable, impervious - not admitting of passage or capable of being affected; "a material impervious to water"; "someone impervious to argument" permeable - allowing fluids or gases to pass or diffuse through; "permeable membranes"; "rock that is permeable by water" |
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