At a loss

Usage examples of flummoxed.

I thought that at least someone might come up with a possible explanation, but everyone I told sounded as flummoxed as I felt.

All he knew was that when he threw it from lower down, his ball had a new movement to it that flummoxed hitters during minor league spring training, and continued to flummox them in Double-A ball.

It happened rarely, but he appeared so flummoxed and defenseless at those instants it was hard not to feel sorry for him.