Describes a fast walking pace or quick movement. Most often used adverbially as 足早に.
See also: 足早に
He headed briskly toward the station.
Quick footsteps approached.
Describes the swift passage of time. Less common than the walking sense.
I regret the swift passage of time.
He walked briskly toward the station.
She hurriedly left the scene.
He briskly passed through the crowd.
Summer passed by swiftly.