impermissible

1. 1.

   not permitted

   “impermissible behavior”

   Antonymspermissible

   Similarforbiddenunmentionableuntouchable
2. 2.

   not allowable

   Similarinadmissible

Questions about impermissible

What does impermissible mean?

impermissible means "not permitted". That is the primary sense; the word has 2 in total, listed in full on this page.

How many syllables are in impermissible?

impermissible has 5 syllables: im-per-mis-si-ble. The stress falls on "mis". In IPA it is /ˌɪmpɚˈmɪsɪbəl/.

What is the opposite of impermissible?

The recorded antonyms are permissible.

Is impermissible a common word?

impermissible is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.