1. strong natural impulse: a powerful impulse that feels natural rather than reasoned followed his instincts and took to his heels
2. biological drive: an inborn pattern of behavior characteristic of a species and shaped by biological necessities such as survival and reproduction the survival instinct
3. knack: a natural gift or skill an instinct for putting people at ease
adjective
Definition:
filled: completely filled or imbued with something
(
formal
)
a look instinct with compassion