from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Not feeling or exhibiting gratitude, thanks, or appreciation.
- adj. Not agreeable or pleasant; repellent: "I will not perform the ungrateful task of comparing cases of failure” ( Abraham Lincoln).
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. not grateful; not expressing gratitude; a dissatisfied person.
from the GNU version of the Collaborative International Dictionary of English
- adj. Not grateful; not thankful for favors; making no returns, or making ill return for kindness, attention, etc.; ingrateful.
- adj. Unpleasing; unacceptable; disagreeable.
from The Century Dictionary and Cyclopedia
- Not grateful; not feeling thankful or showing gratitude for favors; not making returns, or making ill returns, for kindness.
- Exhibiting ingratitude; characterized by ingratitude: as, ungrateful conduct; ungrateful words.
- Giving no return or recompense; offering no inducement: as, “th' ungrateful plain,”
- Unpleasing; unacceptable; disagreeable.
- Synonyms See grateful.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. disagreeable
- adj. not feeling or showing gratitude
un- (“not”) + grate + -ful (“grateful”) (Wiktionary)