What does rapid mean?
Rapid is an adjective meaning fast, quick, or completed in a short time. It describes movement, communication, change, growth, or other processes that happen with little delay. For example, a rapid response may save lives during an emergency, while rapid growth can describe a business expanding quickly. The word is widely used in British and American English and is generally neutral in tone, though it can suggest urgency when paired with subjects such as response, decline, or deterioration. Rapid is especially useful when the speed of an event is important rather than merely noting that it occurred. In formal writing, it can convey efficiency and progress, as in “the rapid resolution of the dispute,” while in everyday speech it often means simply “very quick.”
adjectiveHappening or moving quickly, with great speed or in a short time. It can also describe something developing or changing rapidly.
- Moving or happening quickly.
- Developing, changing, or increasing in a short time.
"The company experienced rapid growth after introducing its new product."
"The emergency team made a rapid response to the incident."
"There has been a rapid improvement in the quality of the service."
The word rapid comes from Latin rapere, meaning “to seize” or “to carry off,” an ancient idea of movement so forceful that it suggested speed.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does rapid come from?
Rapid entered English from the Latin adjective rapidus, meaning “swift” or “moving quickly.” Latin rapidus was derived from rapere, “to seize, take, or carry off,” a root also reflected in English words such as rapt, rapture, ravish, and rapacious. The development reflects the connection between forceful movement and speed: something carried off or moving with urgency proceeds rapidly. The word has long been used in English to describe quick movement and events occurring in a short time.
Related word forms
How rapid is actually used
Rapid is common in both formal and informal contexts. It often describes processes, changes, or responses that happen over a very short period, and can carry a slightly urgent or emphatic tone.
Easily confused with rapid
Rapid means moving or happening quickly, whereas rabid means infected with rabies or wildly enthusiastic and irrational.
Rapid is an adjective describing speed, while rapids are sections of a river with fast-moving, turbulent water.