Corporate English
Dictionaries
About us
App
Sign up
ES
Grab your gift
Blog
Dictionaries
Synonyms Antonyms
Sudden
Choose the perfect synonym or antonym for the word
keyboard
pig
declaration
doctrine
disc
Sudden
/ˈsʌdn/
Happening quickly and unexpectedly without prior warning.
Synonyms:
abrupt
unexpected
swift
instantaneous
Antonyms:
gradual
deliberate
planned
foreseen
Examples:
There was a
sudden
loud noise outside.
The
sudden
rain caught us without umbrellas.
Etymology:
Late Middle English: from Anglo-Norman French, having Latin roots from
subitaneus
, based on
subitus
meaning
coming from beneath, unawares
.
Usage Statistics:
22 mentions per 1 million words
Often
Hint:
Frequency according to COCA
Formal Synonyms
Informal Synonyms
© 2026 Lithium Lab Pte Ltd