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from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. An ungrateful person.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Ungrateful.
  • adj. Unpleasant, unfriendly
  • n. An ungrateful person.

from the GNU version of the Collaborative International Dictionary of English

  • adj. Ingrateful.
  • n. An ungrateful person.

from The Century Dictionary and Cyclopedia

  • Unthankful; ungrateful.
  • n. An ungrateful person; one who rewards favors with enmity or treachery.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a person who shows no gratitude


From Middle English ingrat, ungrateful, from Old French, from Latin ingrātus : in-, not; see in-1 + grātus, pleasing, thankful; see gwerə-2 in Indo-European roots.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From Latin ingrātus ("disagreeable"), in- (“not”) +‎ grātus (“pleasing”). (Wiktionary)



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  • ... whose fault?
    Whose but his own? ingrate, he had of mee
    All he could have ...

    Milton, Paradise Lost III

    December 18, 2006