proneness

Noun

 * 1) The quality or state of being prone, or of bending downward.
 * 2) The state of lying with the face down.
 * 3)  Descent; declivity.
 * 4) Inclination of mind, heart, or temper; propension; disposition.
 * 1)  Descent; declivity.
 * 2) Inclination of mind, heart, or temper; propension; disposition.
 * 1) Inclination of mind, heart, or temper; propension; disposition.