Definition of sudden
(Entry 1 of 2)
1a
: happening or coming unexpectedly
a sudden shower
b
: changing angle or character all at once
a sudden drop in the ocean bottom
2
: marked by or manifesting abruptness or haste
a sudden departure
3
: made or brought about in a short time : prompt
sudden
nounDefinition of sudden (Entry 2 of 2)
obsolete
: an unexpected occurrence : emergency
all of a sudden
or less commonly on a sudden
: sooner than was expected : at once
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Time Traveler for sudden
The first known use of sudden was in the 14th century
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