- (n.) Disease; indisposition; malady; disorder of health; sickness; as, a short or a severe illness.
- (n.) The condition of being ill, evil or bad; badness; unfavorableness.
- (n.) Wrong moral conduct; wickedness.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). illness. Retrieved September 22, 2026, from http://smartdefine.org/illness/definitions/2018986 |
| Chicago | Webster's. 2011. "illness" http://smartdefine.org/illness/definitions/2018986 (accessed September 22, 2026). |
| Harvard | Webster's 2011, illness, Smart Define, viewed 22 September, 2026, <http://smartdefine.org/illness/definitions/2018986>. |
| MLA | Webster's. "illness" 27 May 2011. Web. 22 September 2026. <http://smartdefine.org/illness/definitions/2018986> |