subitaneous

adjective

Roget 113: instantaneous, momentary, sudden, immediate, instant, abrupt, discontinuous, precipitous, precipitant, precipitate; subitaneous^†, hasty; quick as thought, quick as lightning, quick as a flash; rapid as electricity.    speedy, quick, fast, fleet, swift, lively, blitz; rapid (velocity) 274.    ... show more

debug info: 0.0912