- (n.) Morbid drowsiness; continued or profound sleep, from which a person can scarcely be awaked.
- (n.) A state of inaction or indifference.
- (v.t.) To lethargize.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). lethargy. Retrieved September 24, 2026, from http://smartdefine.org/lethargy/definitions/2027491 |
| Chicago | Webster's. 2011. "lethargy" http://smartdefine.org/lethargy/definitions/2027491 (accessed September 24, 2026). |
| Harvard | Webster's 2011, lethargy, Smart Define, viewed 24 September, 2026, <http://smartdefine.org/lethargy/definitions/2027491>. |
| MLA | Webster's. "lethargy" 27 May 2011. Web. 24 September 2026. <http://smartdefine.org/lethargy/definitions/2027491> |