[syn: on the spur of the moment, suddenly]
The Collaborative International Dictionary of English v.0.48:
Sudden \Sud"den\, a. [OE. sodian, sodein, OF. sodain, sudain, F.
soudain, L. subitaneus, fr. subitus sudden, that has come
unexpectedly, p. p. of subire to come on, to steal upon; sub
under, secretly + ire to go. See Issue, and cf.
1. Happening without previous notice or with very brief
notice; coming unexpectedly, or without the common
preparation; immediate; instant; speedy. "O sudden wo!"
--Chaucer. "For fear of sudden death." --Shak.
Sudden fear troubleth thee. --Job xxii.
2. Hastly prepared or employed; quick; rapid.
Never was such a sudden scholar made. --Shak.
The apples of Asphaltis, appearing goodly to the
sudden eye. --Milton.
3. Hasty; violent; rash; precipitate. [Obs.] --Shak.
Syn: Unexpected; unusual; abrupt; unlooked-for.
[1913 Webster] -- Sud"den*ly, adv. -- Sud"den*ness,
WordNet (r) 3.0 (2006):
adv 1: happening unexpectedly; "suddenly she felt a sharp pain
in her side" [syn: suddenly, all of a sudden, of a
2: quickly and without warning; "he stopped suddenly" [syn:
abruptly, suddenly, short, dead]
3: on impulse; without premeditation; "he decided to go to
Chicago on the spur of the moment"; "he made up his mind
suddenly" [syn: on the spur of the moment, suddenly]
Moby Thesaurus II by Grady Ward, 1.0:
58 Moby Thesaurus words for "suddenly":
a corps perdu, aback, abruptly, all at once, bang, by surprise,
dash, feverishly, fleetingly, forthwith, hastily, head over heels,
headfirst, headforemost, headlong, heels over head, hurriedly,
impetuously, implausibly, improbably, impulsively, in a trice,
instantaneously, instantly, like a flash, like a thunderbolt,
momentarily, of a sudden, on short notice, plop, plump, plunk, pop,
precipitantly, precipitately, precipitously, quickly, rapidly,
rashly, recklessly, sharp, short, slap, slap-bang, smack, speedily,
startlingly, sudden, surprisingly, swiftly, unanticipatedly,
unaware, unawares, unexpectedly, unforeseeably, unpredictably,
without notice, without warning