[syn: suddenly, all of a sudden, of a sudden]
The Collaborative International Dictionary of English v.0.48:
Sudden \Sud"den\, n.
An unexpected occurrence; a surprise.
All of a sudden, On a sudden, Of a sudden, sooner than
was expected; without the usual preparation; suddenly.
How art thou lost! how on a sudden lost! --Milton.
He withdrew his opposition all of a sudden.
WordNet (r) 3.0 (2006):
all of a sudden
adv 1: without warning; "all at once, he started shouting" [syn:
all of a sudden, all at once]
2: happening unexpectedly; "suddenly she felt a sharp pain in
her side" [syn: suddenly, all of a sudden, of a sudden]
Moby Thesaurus II by Grady Ward, 1.0:
29 Moby Thesaurus words for "all of a sudden":
abruptly, bang, dash, hastily, impetuously, impulsively,
like a flash, like a thunderbolt, of a sudden, on short notice,
plop, plump, plunk, pop, precipitantly, precipitately,
precipitously, sharp, short, slap, smack, startlingly, sudden,
suddenly, surprisingly, unawares, unexpectedly, without notice,