at a loss
idiomPart ofloss
at a loss — idiom
1. feeling confused or uncertain about what to do or say, especially in a surprisin
1.idiom
Definition
feeling confused or uncertain about what to do or say, especially in a surprising or difficult situation.
Example
Christopher was at a loss when the customer asked a technical question he had never heard before.
The teacher was at a loss to explain why all the students had scored so poorly on the test.