impermeable


impermeable

adjective

Definition of IMPERMEABLE

1
impossible to get through or into <the wall of security people surrounding the rock band was impermeable>
Synonyms impassable (also impassible), impermeable, impervious, impregnable
2
not allowing penetration (as by gas, liquid, or light) <an impermeable seal on the ancient tomb had preserved the artifacts exceptionally well>
Near Antonyms absorbent, leaky, porous, unsealed

Seen & Heard

What made you want to look up impermeable? Please tell us where you read or heard it (including the quote, if possible).