swiftly
adv. manner B1 Intermediate US //ˈswɪftɫi// UK //swˈɪftli// swift·ly
adv. in a fast way; moving or happening quickly. You use it to describe speed without sounding too formal.
adv. in a rapid manner; with speed. Typically placed after the main verb or at the end of the clause.
The car moved swiftly down the road.
She swiftly answered the phone before it could ring a second time.
The government acted swiftly to contain the outbreak, implementing strict travel restrictions within hours of the first confirmed case.
From Middle English swiftly, swyftely, swiftliche, from Old English swiftlīċe (“swiftly”), equivalent to swift + -ly.