Definition of all of a sudden in English:

(all) of a sudden

Suddenly: I feel really tired all of a sudden
More example sentences
  • All of a sudden, he's being asked to dinner by leading writers and noblemen.
  • All of a sudden, the normal drone of the training room was shattered by peals of laughter!
  • All of a sudden, you're face to face with a black, hairy spider the size of a beach ball.
See parent entry: sudden

Definition of all of a sudden in:

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Word of the day flippant
Pronunciation: ˈflipənt
adjective
not showing a serious or respectful attitude