Instinct

Urged or stimulated from within; naturally moved or impelled; imbued; animated; alive; quick; as, birds instinct with life.

Natural inward impulse; unconscious, involuntary, or unreasoning prompting to any mode of action, whether bodily, or mental, without a distinct apprehension of the end or object to be accomplished.

Specif., the natural, unreasoning, impulse by which an animal is guided to the performance of any action, without of improvement in the method.

A natural aptitude or knack; a predilection; as, an instinct for order; to be modest by instinct.

To impress, as an animating power, or instinct.

inborn pattern of behavior often responsive to specific stimuli; "the spawning instinct in salmon"; "altruistic instincts in social animals"