proneness n : being disposed to do something; "accident proneness"
- The quality or state of being prone, or of bending downward; as, the proneness of beasts is opposed to the erectness of man.
- The state of lying with the face down.
- Descent; declivity; as, the proneness of a hill.
- Inclination of mind, heart, or temper; propension; disposition; as, proneness to self-gratification.
- (state of lying face-down) supineness