inexcusably

About 0.05 uses per million words.

Meaning

1. adverb In an inexcusable manner.

   We arrived at the wedding inexcusably late.

Similar words

unpardonably unforgivably unjustifiably unexcusably unexcitably excusably indefensibly unconscionably inadmissibly inconscionably

Often followed by

bad rude late defective careless wrong and long delayed