impermeable

adj — 2 senses

adj

UK /ɪmˈpɜːmɪəbəl/ · CA, US /ɪmˈpɝmɪəbəl/

Etymology Apparently from im- + permeable. Compare French imperméable, from Latin impermeābilis, from im- + permeābilis (“permeable”).

Impossible to permeate.

Not allowing passage, especially of liquids; waterproof.

Synonyms: nonpermeable, sealed
Antonyms: permeable
Derived terms: impermeableness, impermeably
Related terms: impermeability, permeability, hermetically sealed, impenetrable

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.