sudden

Synonyms

fast

acting or moving or capable of acting or moving quickly

abrupt

exceedingly sudden and unexpected

choppy, jerky

marked by abrupt transitions

emergent

occurring unexpectedly and requiring urgent action

explosive

sudden and loud

fulminant

sudden and severe

sharp

very sudden and in great amount or degree

Antonyms:

gradual

proceeding in small stages

slow

not moving quickly; taking a comparatively long time

bit-by-bit, in small stages, piecemeal, step-by-step, stepwise

one thing at a time

gradational, gradatory, graduated

taking place by degrees

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