noun a sudden and unexpected event or situation
adverb unexpectedly or suddenly
Refers to a sudden and unexpected emotional reaction or memory that comes to mind out of the blue.
Describes an object or phenomenon that appears suddenly in the sky without warning, like a comet out of the blue.
Used to describe a sudden and unexpected weather event, such as a thunderstorm out of the blue.
In the world of literature, an unexpected plot twist can be described as happening 'out of the blue'.
A sudden change in behavior or mood in a patient may be seen as coming 'out of the blue'.
A new competitor entering the market with a disruptive product can be seen as coming 'out of the blue'.
A sudden drop in stock prices without any apparent reason can be described as occurring 'out of the blue'.
A bug in the code that causes unexpected errors can be referred to as appearing 'out of the blue'.
An employee suddenly resigning without any prior notice can be seen as leaving 'out of the blue'.
A client requesting a complete redesign of a project at the last minute can be considered as a change 'out of the blue'.
A new ingredient being introduced into a dish without prior discussion can be described as added 'out of the blue'.
A surprise witness being brought forward in a court case can be seen as appearing 'out of the blue'.
A student suddenly excelling in a subject they previously struggled with can be seen as a success 'out of the blue'.