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adj. rap·id·er, rap·id·est
Moving, acting, or occurring with great speed. See Synonyms at fast1.
n. often rapids
An extremely fast-moving part of a river, caused by a steep descent in the riverbed.

[Latin rapidus, from rapere, to seize; see rep- in Indo-European roots.]

ra·pid′i·ty (rə-pĭd′ĭ-tē), rap′id·ness (răp′ĭd-nĕs) n.
rap′id·ly adv.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.rapidness - a rate that is rapid
pace, rate - the relative speed of progress or change; "he lived at a fast pace"; "he works at a great rate"; "the pace of events accelerated"
fleetness - rapidity of movement; "fleetness of foot"
immediateness, instancy, instantaneousness, immediacy - the quickness of action or occurrence; "the immediacy of their response"; "the instancy of modern communication"
expeditiousness, despatch, dispatch, expedition - the property of being prompt and efficient; "it was done with dispatch"
promptitude, promptness - the characteristic of doing things without delay


hraîi, snarleiki


(ˈrӕpid) adjective
quick; fast. He made some rapid calculations; He looked feverish and had a rapid pulse.
ˈrapidly adverb
raˈpidity noun
ˈrapidness noun
ˈrapids noun plural
a place in a river where the water flows quickly, often having dangerous rocks in mid-stream.
References in periodicals archive ?
important;} Credit: @ شبكة ابوظبي || أخبار الامارات Several users commented on the video - which was published on Abu Dhabi Network's Instagram account - hailing the officer's rapidness to ensure the safety of the drivers.
Emergency services managed by public authorities are an example of another type of service system where the service time is particularly critical and where the nature or circumstances of an incident may dictate the rapidness of the response.
COL Wols explained that what SOCOM does is not unique in terms of where or how it operates; size and rapidness cause the command's largest challenges.
During the opening of the new EmX from Eugene Station to West 11th, I was pleasantly surprised at the rapidness of this transit.
Nucleic acid test (NAT) is preferable in terms of its simplicity, rapidness and sensitivity but in some cases of occult HBV especially, NAT may miss some positive samples.
n] of the bicycle model, which is derived from the characteristic equation of the vehicle model, is the index, which represents the rapidness of the rise-up of the response.
The requirements on stability, rapidness and accuracy may conflict with each other, and then a compromise has to be made according to the specific simulation objective.
Konashenkov pointed out the rapidness and method of publishing the statements supporting Ankara about these allegations especially by NATO and Pentagon despite the fact that Turkey hasn't made public any data about the area or about the height, speed and destination of the Russianaircraft in the air.
Apart from being arduous process the same requires two hours per reaction; other approaches involving kit methods guaranteeing rapidness and not cost-effective.
The rapidness with which information is disseminated has created a need for risk managers and their partners to maintain as much perspective on current events and crisis management to respond as quickly as possible," said Haitsch.
And Chiu [25] considers Custom service, rapidness, and simple documents in port, cargo damage and skills of port as competitive components.