by seat of one's pants

impulsive ingrained inherent innate intuitive natural spontaneous visceral

accustomed congenital habitual inborn instinctual intrinsic intuitional involuntary knee-jerk mechanical native normal regular rooted second-nature typical unlearned unmeditated unpremeditated unprompted unthinking

acquired extrinsic learned

conscious deliberate meditated reasonable sensible

accustomed congenital habitual impulsive inborn ingrained inherent innate intrinsic intuitional intuitive involuntary knee-jerk mechanical native natural normal regular rooted second-nature spontaneous typical unlearned unmeditated unpremeditated unprompted unthinking visceral