Impulse
Definition 1 of 4
Pro Tip 1/3
Emotion origin
The 'impulse' to act stems from a sudden emotion rather than careful thought. Seeing the injured animal by the road, she had an impulse to help.
Pro Tip 2/3
Temporary feeling
'Impulse' often refers to a temporary desire that might quickly pass. He bought the expensive shoes on an impulse, but later regretted it.
Pro Tip 3/3
Acting without plan
Acting on 'impulse' means doing something unplanned. She cut her hair on impulse and surprised everyone.