(that's) news to (you)

something that you did not know.

You say the jury found him guilty? That's news to me.

The boss said it was news to him that some of the employees had shredded documents.

Usage notes: usually said about something that surprises you

• be on record
• be on red alert
• be on shit list
• be on someone's ass
• be on someone's back
• be on someone's case
• be on someone's shit list
• be on song
• be on speaking terms
• be on tail
• be on the back burner
• be on the ball
• be on the blink
• be on the bottle
• be on the breadline
• be on the brink of
• be on the brink of doing something
• be on the cards
• be on the case
• be on the crest of a wave
• be on the [expensive/heavy/large etc.] side
• be on the expensive side
• be on the fiddle
• be on the fritz
• be on the game