- (n.) The quality or state of being prone or of bending downward; as, the proneness of beasts is opposed to the erectness of man.
- (n.) Descent; declivity; as, the proneness of a hill.
- (n.) Inclination of mind, heart or temper; propension; disposition; as, proneness to self-gratification.
- (n.) The state of lying with the face down; -- opposed to supineness.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). Proneness. Retrieved September 22, 2026, from http://smartdefine.org/proneness/definitions/2049815 |
| Chicago | Webster's. 2011. "Proneness" http://smartdefine.org/proneness/definitions/2049815 (accessed September 22, 2026). |
| Harvard | Webster's 2011, Proneness, Smart Define, viewed 22 September, 2026, <http://smartdefine.org/proneness/definitions/2049815>. |
| MLA | Webster's. "Proneness" 27 May 2011. Web. 22 September 2026. <http://smartdefine.org/proneness/definitions/2049815> |