INEXCUSABLE (adjective) definition and synonyms | Macmillan Dictionary.

Is the correct word inexcusable or Unexcusable?

in•ex•cus•a•ble /ˌɪnɪkˈskyuzəbəl/ adj. that may not be excused:inexcusable behavior.

What does inexcusable stand for?

: impossible to excuse or justify inexcusable rudeness. Other Words from inexcusable Synonyms & Antonyms More Example Sentences Learn More About inexcusable.