impulse Add to list Share. An impulse is a sudden force or desire — this could be an electrical impulse, or an impulse to get some pizza. If you act on a sudden feeling or thought, you're following an impulse. That's like a whim: an impulse isn't something you've given a lot of thought.

What does the word impulse mean in a sentence?

impulse noun (WISH)

C2 [ C + to infinitive ] a sudden strong wish to do something: I had this sudden impulse to shout out "Nonsense!" in the middle of her speech.

What word means to act on impulse?

impulsive Add to list Share. If someone is impulsive, it means that they act on instinct, without thinking decisions through. ... Impulses are short, quick feelings, and if someone is in the habit of acting on them, they're impulsive.