Impermissible
/ˌɪmpəˈrmɪsɪbəl/
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Definition
(adj) Not permissible; not to be permitted or allowed.
Sentence Examples
The action was deemed impermissible by law.
Such behavior is impermissible in the workplace.
CEFR Practice Quiz
In professional sports, using performance-enhancing drugs is strictly ____ and penalized.