Out of left field
/aʊt əv left fiːld/informalUS
What does “Out of left field” mean?
Out of left field means unexpected or surprisingly unusual
A question about your childhood pets in a job interview may come out of left field. Nothing in the conversation prepared you for it.
An unusual creative suggestion can be “left-field” too. That can be praise for originality or criticism for being hard to follow.
When do people say it?
Use it for an unexpected question, suggestion or development. It can also suggest that an idea is unusual, not simply surprising.
“Her question about my childhood pets came out of left field.”
Is it formal or informal?
Register: informal. It is most at home in everyday conversation rather than formal writing. Most common in US.
Where does it come from?
“Left field” names part of a baseball field. The idiom uses that sporting direction for something arriving from an unexpected source.
Origin confidence: Disputed; treat with caution
How do you say “Out of left field” in other languages?
Related idioms
- Out of the blue, Suddenly and without warning
Last updated 2026-10-01