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impermissible

1 ENTRIES FOUND:
impermissible /ɪmˌpɚˈmɪsəbəl/ adjective
impermissible
/ɪmˌpɚˈmɪsəbəl/
adjective
Britannica Dictionary definition of IMPERMISSIBLE
formal
: not allowed or permitted : not permissible

— impermissibly

/ɪmˌpɚˈmɪsəbli/ adverb