adjective
- Not feeling or showing gratitude."ungrateful heirs"; "How sharper than a serpent's tooth it is / To have a thankless child- Shakespeare
- synonyms: ungrateful, unthankful
- Not likely to be rewarded.
- usage: "grading papers is a thankless task"
- synonyms: unappreciated, ungratifying
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). thankless. Retrieved September 20, 2026, from http://smartdefine.org/thankless/definitions/1185247 |
| Chicago | WordNet. 2010. "thankless" http://smartdefine.org/thankless/definitions/1185247 (accessed September 20, 2026). |
| Harvard | WordNet 2010, thankless, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/thankless/definitions/1185247>. |
| MLA | WordNet. "thankless" 23 October 2010. Web. 20 September 2026. <http://smartdefine.org/thankless/definitions/1185247> |