extemporaneous deed

Definitions

An action performed without prior planning or preparation.

A spontaneous or improvised act carried out on the spur of the moment.

Examples

His decision to pay for the stranger's groceries was a purely extemporaneous deed that left everyone in the store feeling uplifted.

The hero's extemporaneous deed of pulling the child from the path of the oncoming car was performed without a moment's hesitation.

Synonyms

impromptu action spontaneous act unplanned deed off-the-cuff performance improvised maneuver

Antonyms

premeditated act rehearsed performance planned maneuver calculated deed deliberate action