inexcusably

inexcusable | American Dictionary

inexcusable
adjective
us/ˌɪn·ɪkˈskju·zə·bəl/
(of behavior) too bad to be accepted:
It was inexcusable for them to leave so early.

Examples of inexcusable

inexcusable
This might be acceptable in a more limited and concise study, but is inexcusable in a book of this length.
His text includes a pointer to data in the introduction which should clarify which constructions belong to which types, but the mistake is still inexcusable.
These collegial bodies would carry out investigations and trials in cases of corruption or inexcusable failure to fulfil campaign promises.
To prioritise arms over the lives of children is an inexcusable evil that will be one of the biggest blights upon this government.
For one thing it makes you miss bits of the picture and for another it's too inclined to make a noise, and that's inexcusable !
In the end, however, the utility of this book is compromised by a fatal and inexcusable flaw.
This is really inexcusable for an otherwise sophisticated scholarly work.
To sideline this literature altogether, as is done here, seems inexcusable.
After all, such incidents were not so infrequent although, naturally, inexcusable.
The fact that two public institutions make profits on each other’s backs is inexcusable, since it is still taxpayers’ money that is involved.
From Europarl Parallel Corpus - English
He said that leaks were unprofessional and inexcusable.
From the
Hansard archive