A really fast thesaurus... with lots of synonyms.
Impermeable has 43 synonyms. The top synonyms for impermeable are viscous, viscose, viscid, unpierceable, unperforable, unpassable, thickset, thick-growing and 35 more. Browse the full list below.
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| Random | DefinitionA common synonym for impermeable is viscous. Other synonyms include viscose, viscid, unpierceable, unperforable.
Impermeable has 43 synonyms listed on Thesaurasize.
(adj): impossible to permeate; not allowing passage, especially of liquids; waterproof
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