swiftness

noun

swift·​ness ˈswif(t)-nəs 

1

: the quality or state of being swift : celerity

2

: the fact of being swift

Synonyms

• speed
• velocity

Examples of swiftness in a Sentence

with amazing swiftness, the airline agent got our ticket changed, and we boarded the plane just as it was about to leave

Recent Examples on the Web

The experience gets even better with a group of friends, and reaches its pinnacle in the Florida Keys, where personal watercraft, thanks to their swiftness, agility, and minimal draft, are ideal vessels to explore the pristine, and often shallow waters. —Jeremy Korzeniewski, Robb Report, 12 July 2025

The swiftness of the oncoming danger meant that even the fastest municipal response would have met major challenges. —Zoë Schlanger, The Atlantic, 8 July 2025

The tragic stories were piling up with sensational swiftness. —Literary Hub, 24 June 2025

The court took the unusual step of issuing its ruling without waiting for Alito to share his dissent — another detail demonstrating the swiftness of the court’s actions after it was asked to intervene. —Rebecca Beitsch, The Hill, 21 Apr. 2025

Word History

First Known Use

before the 12th century, in the meaning defined at sense 1