explosive power; instantaneous force
Often used in sports and fitness contexts to describe the ability to exert maximum force in a very short time, such as sprinting or jumping.
See also: 瞬発
Sprinting requires high explosive power.
His instantaneous force is the best on the team.
quick responsiveness; instantaneity
Refers to the ability to react or respond immediately, often in mental or situational contexts rather than physical strength.
Quick responsiveness is required in customer service.
I'm always amazed by his instantaneity in answering questions.