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