celerity
Definitions
Swiftness of movement.
Rapidity of motion or action; speed.
Examples
The emergency response team acted with such celerity that they arrived at the scene within minutes of the call.
He completed the complex mathematical proof with a celerity that astonished his professors.
Synonyms
speed swiftness rapidity promptness haste quickness velocity
Antonyms
slowness sluggishness delay lethargy tardiness languor dilatoriness