Synonyms of all of a sudden

all of a sudden

phrase

1

as in suddenly

without warning

We stopped on the trail for a snack when all of a sudden a bear appeared.

Synonyms & Similar Words

• suddenly
• unexpectedly
• unaware
• unanticipatedly
• unawares
• abruptly
• aback
• off base
• short
• surprisingly
• amazingly
• astoundingly

Antonyms & Near Antonyms

• slowly
• leisurely
• tardily
• sluggishly
• obviously
• pokily
• laggardly

2

as in abruptly

with great suddenness

New England weather is funny: one minute it's 70 degrees and then all of a sudden it's snowing.

Synonyms & Similar Words

• suddenly
• abruptly
• instantly
• right away
• right off
• immediately
• short
• directly
• unexpectedly
• surprisingly
• quickly
• promptly
• rapidly
• readily
• quick
• instantaneously
• swiftly
• swift
• straightaway
• hastily
• speedily
• incontinently
• pronto
• right
• recklessly
• impulsively
• snappily
• rashly
• full-tilt
• posthaste
• fast
• impetuously

Antonyms & Near Antonyms

• slowly
• gradually
• hesitantly

Video

'All over sudden' vs. 'All of a sudden'

Figuring it out at once