noun
- Poorer than expected performance (poorer than might have been predicted from intelligence tests. ).
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). underachievement. Retrieved September 20, 2026, from http://smartdefine.org/underachievement/definitions/1188743 |
| Chicago | WordNet. 2010. "underachievement" http://smartdefine.org/underachievement/definitions/1188743 (accessed September 20, 2026). |
| Harvard | WordNet 2010, underachievement, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/underachievement/definitions/1188743>. |
| MLA | WordNet. "underachievement" 23 October 2010. Web. 20 September 2026. <http://smartdefine.org/underachievement/definitions/1188743> |