inclination

(ĭnˌklə-nāˈshən)

1. The act of inclining or the state of being inclined; a bend or tilt: The inclination of the child's head suggested sleep.
2. a. A deviation or the degree of deviation from the horizontal or vertical; a slant: the steep inclination of a roof.
   b. An inclined surface; a slope.
3. A tendency toward a certain condition or character: the alkaline inclination of the local waters.
4. A characteristic disposition to do, prefer, or favor one thing rather than another; a propensity: “I shall indulge the inclination so natural in old men, to be talking of themselves” (Benjamin Franklin). See Synonyms at tendency.