im·pul·sive (m-plsv)
adj.
1. Inclined to act on impulse rather than thought.
2. Motivated by or resulting from impulse: such impulsive acts as hugging strangers; impulsive generosity.
- How long will you be gone?
- Forever, perhaps. I don't know. It depends upon many good things.
- Well, in case it shouldn't be forever, how long will it be?
- I don't know.