rap·id (r p  d)adj. rap·id·er, rap·id·est Moving, acting, or occurring with great speed. See Synonyms at fast1. n. An extremely fast-moving part of a river, caused by a steep descent in the riverbed. Often used in the plural. [Latin rapidus, from rapere, to seize; see rep- in Indo-European roots.] ra·pid i·ty (r -pd-t ), rapid·ness (rpd-n s) n.rap id·ly adv. |
ThesaurusLegend: Synonyms Related Words Antonyms
| Noun | 1. | rapidity - 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 |
rapidity
noun speed, swiftness, promptness, speediness, rush, hurry, expedition, dispatch, velocity, haste, alacrity, quickness, briskness, fleetness, celerity, promptitude, precipitateness
Translations
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