unmerited

Definitions:

Not deserved; unjust.
- Nuttall's Standard dictionary of the English language. By Nuttall, P.Austin. Published 1914. (adjective) (adj.) (adjective)
Not deserving; unjust.
- Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874. (adjective) (adj.) (adjective)

Usage examples:

I let Mrs. Ashley know that we regarded it as a most unmerited and uncalled- for slight; and I took care to drop a hint that we believed Halliburton to have been guilty in that cheque affair.
- Mrs. Halliburton's Troubles by Mrs. Henry Wood
Age, infirmity, temporary distress, unmerited destitution, found him a steady, watchful, indefatigable friend.
- Alice, or The Mysteries, Book II by Edward Bulwer Lytton
He wondered, too, wishing to be quite fair, if North had not been the subject of a good deal of unmerited censure, if, after all, his idleness had not been the worst thing about him.
- The Just and the Unjust by Vaughan Kester