Definitions
There are 2 meanings of the phrase
All Of A Sudden.
All Of A Sudden - as an adverb
Quickly and without warning
Example: "He stopped suddenly"
Synonyms (Exact Relations)
abruptlydeadof a suddenon the spur of the momentshortsuddenlyExample Sentences
"She fainted all of a sudden during the concert."
"The car broke down all of a sudden on the highway."
"The dog barked loudly all of a sudden."
"We were having a peaceful dinner when, all of a sudden, a loud noise startled us."
"He disappeared from the party all of a sudden."