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Definitions

rapidly

[rap-id-lee] / ˈræp ɪd li /
ADVERB
very quickly
Synonyms
STRONGEST
briskly expeditiously fast immediately promptly speedily swiftly
WEAK
at speed flat out full tilt hastily hurriedly in a hurry in a rush in haste lickety-split like a shot posthaste precipitately with dispatch
Antonyms
STRONGEST
slowly sluggishly
WEAK
leisurely

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Defense officials said American manufacturers might be needed to backstop traditional defense companies and asked whether the companies could rapidly shift to defense work.

From The Wall Street Journal • Apr. 15, 2026

Gas-fired power stations help balance the electricity system by rapidly increasing output when renewable generation is intermittent.

From BBC • Apr. 14, 2026

The American population is rapidly aging, with baby boomers hitting 65 in record numbers, which is just at the cusp of when people start to take estate planning seriously.

From MarketWatch • Apr. 14, 2026

The installation of charging stations in the region is also growing rapidly.

From Barron's • Apr. 14, 2026

A few blocks away, the water receded rapidly, building into a massive wave —a towering wall of water and wind and rain that swallowed buildings and palm trees and electric poles as it advanced.

From "Two Degrees" by Alan Gratz