all of a sudden

• Expresión idiomática que significa 'repentinamente' o 'de manera inesperada', usada para describir algo que ocurre sin aviso o en un lapso de tiempo muy corto.

An idiomatic expression meaning 'suddenly' or 'unexpectedly', used to describe something that happens without warning or in a very short amount of time.

1. Unexpectedly or quicklyA2informal

   Happening without warning or preparation; suddenly.

   de repente

   • All of a sudden, the lights went out.
   • She started crying all of a sudden.
   • All of a sudden, the dog began barking loudly.