|Origin:||rapidus 'seizing, sweeping away', from rapere; RAPE1|
The patient made a rapid recovery.
rapid population growth
a period of rapid decline
He fired three times in rapid succession (=one after another).
—rapidity noun [uncountable]WORD FOCUS: fast
Their debts mounted with alarming rapidity.
moving very quickly: at high speed, like lightning, at top speed, flat out
doing something quickly: quick, rapid, swift, prompt, speedy
happening quickly: rapid, speedy, meteoric, at an alarming rate, in no time
➔ See also fast