noun

impulse

impulse, urge, stimulus

He had a sudden impulse to buy a new car.

He had a sudden impulse to buy a new car.

The nerve sends an impulse to the brain.

The nerve sends an impulse to the brain.

She bought the shoes on impulse.

She bought the shoes on impulse.

((an impulse)) to do sth. a sudden strong wish to do sth. He felt an impulse to shout.

to act ((on impulse)) to do sth. suddenly without thinking She often acts on impulse.

Synonyms: urge, desire, instinct; Antonyms: deliberation, forethought

From Latin 'impellere' (to push, drive), from 'im-' (in) + 'pellere' (to push).

Think of an internal 'pulse' that 'pushes' you ('im-') to act suddenly.

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