- (a.) Unpleasing; unacceptable; disagreeable; as, harsh sounds are ungrateful to the ear.
- (a.) Not grateful; not thankful for favors; making no returns or making ill return for kindness, attention, etc.; ingrateful.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). ungrateful. Retrieved September 26, 2026, from http://smartdefine.org/ungrateful/definitions/2077085 |
| Chicago | Webster's. 2011. "ungrateful" http://smartdefine.org/ungrateful/definitions/2077085 (accessed September 26, 2026). |
| Harvard | Webster's 2011, ungrateful, Smart Define, viewed 26 September, 2026, <http://smartdefine.org/ungrateful/definitions/2077085>. |
| MLA | Webster's. "ungrateful" 28 May 2011. Web. 26 September 2026. <http://smartdefine.org/ungrateful/definitions/2077085> |