1. A natural, involuntary desire or drive that arises from basic instinct rather than conscious thought
The mother felt an instinctive urge to protect her child from danger.
A mãe sentiu um impulso instintivo de proteger seu filho do perigo.
2. An innate compulsion or inclination to act in a certain way without deliberation
He had an instinctive urge to run away when he saw the aggressive dog.
Ele tinha um impulso instintivo de fugir quando viu o cachorro agressivo.