Non-permeable

[pur-mee-uh-buh l] /ˈpɜr mi ə bəl/

adjective
1.
capable of being .
/ˈpɜːmɪəbəl/
adjective
1.
capable of being permeated, esp by liquids
adj.

early 15c., from Late Latin permeabilis “that can be passed through, passable,” from Latin permeare “to pass through, go over,” from per- “through” (see per) + meare “to pass,” from PIE root *mei- “to change” (see mutable). Related: Permeably.

permeable per·me·a·ble (pûr’mē-ə-bəl)
adj.
That can be permeated or penetrated, especially by liquids or gases.
permeable
(pûr’mē-ə-bəl)
Capable of being passed through or permeated, especially by liquids or gases.

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