Perceiving or responding with speed and sensitivity; keen:
Mentally quick; quick-witted; alert
Of, relating to, or appropriate for rapid travel:
The definition of fleet is something that moves swiftly.
Acting with too much speed or haste; hurried:
Keen or sharp in speech or manner:
Required to move or act more rapidly; rushed.
Done, spoken, etc. at once or without delay
Designating, of, or moving at a speed in a surrounding fluid greater than that of sound in the same fluid
Acting or responding quickly; prompt; ready
At full speed or with great speed
Short in time, duration, length, or extent.
Of or relating to aviation:
Extending or traveling not far or not far enough:
Progressing slowly and laboriously.
Not moving or able to move quickly; proceeding at a low speed:
Slow in moving, acting, etc.
Rapid is defined as something that is fast or quick or that happens in a short time.
Firm in loyalty:
Find another word for speedy. In this page you can discover 28 synonyms, antonyms, idiomatic expressions, and related words for speedy, like: breakneck, expeditious, quick, nimble, rapid, express, fleet, hasty, fast, brisk and delayed.