sudden
Concise Oxford English Dictionary © 2008 Oxford University Press:
sudden/ˈsʌdn/
▶adjective occurring or done quickly and unexpectedly.
– phrases
(all) of a sudden (or archaic on a sudden) suddenly.
(all) of a sudden (or archaic on a sudden) suddenly.
– derivatives
suddenly adverb,
suddenness noun.
suddenly adverb,
suddenness noun.
– origin ME: from Anglo-Norman Fr. sudein, from an alt. of L. subitaneus, from subitus ‘sudden’.
'sudden' also found in these Oxford entries:
abrupt
- abruption
- acoustic shock
- apparition
- arrest
- attack
- avulsion
- bang
- bingo
- black
- blackout
- blench
- blip
- blitz
- blow
- bob
- boil
- bolt
- boutade
- braid
- brainstorm
- brainwave
- breakaway
- breakdown
- breakthrough
- bumpy
- burst
- calamity
- capriccio
- caprice
- capricious
- cataplexy
- catastrophe
- catastrophic
- catastrophism
- click
- cloudburst
- cold turkey
- collapse
- come
- convulse
- convulsion
- coroner
- cough
- coup
- coup de foudre
- coup de main
- coup de théâtre
- crack
- crash

