·adj Bending forward; inclined; not erect.
II. Prone ·adj Headlong; running downward or headlong.
III. Prone ·adj Prostrate; flat; ·esp., lying with the face down;
— opposed to supine.
IV. Prone ·adj Sloping, with reference to a line or surface; declivous; inclined; not level.
V. Prone ·adj Inclined; propense; disposed;
— applied to the mind or affections, usually in an ill sense. Followed by to.