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im·per·me·a·ble
impermeable
pronunciation:
ihm
puhr
mi
b
l
part of speech:
adjective
definition:
not permitting passage or penetration.
An umbrella must be made of fabric impermeable by water.
antonyms:
permeable
,
porous
similar words:
impenetrable
,
proof
,
repellent
related words:
dense
,
solid
,
staunch
,
tight
derivations:
impermeably (adv.), impermeability (n.), impermeableness (n.)
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