inexcusably
1. [ adverb ] in an unpardonable manner or to an unpardonable degree
Synonyms: unforgivably unpardonably
Examples:

"he was inexcusably cruel to his wife"

Related terms: excusably excusably excusably inexcusable unpardonable inexcusable inexcusable inexcusable
2. [ adverb ] without any excuse
Synonyms: unjustifiably
Examples:

"he is unjustifiably harsh on her"

Related terms: justifiably indefensible excusable excusable
Similar spelling:   inexcusable
  inexhaustibly
  inexhaustible
  injectable
  inexactly
  insecurely
  innocuous