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Impermissible has 8 synonyms. The top synonyms for impermissible are taboo, proscribed, tabu, untouchable, prohibited, unmentionable, inadmissible, forbidden. Another word for impermissible is taboo. Browse the full list below.
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| Random | DefinitionA common synonym for impermissible is taboo. Other synonyms include proscribed, tabu, untouchable, prohibited.
Impermissible has 8 synonyms listed on Thesaurasize.
(adj): not permissible; not to be permitted or allowed
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