puzzlement

Scientists began giving serious consideration to the unusual phenomenon, pottering around in the pits, wearing airs of puzzlement.

Much to the speaker's surprise, there followed an interval of silence, and his puzzlement showed in the knitting of his brows.

Mel knowed; a state of puzzlement or even a good mad's a mighty sight better than bein' all harrowed up and grief-stricken.

I was looked upon with some doubt, and scanned from hurrying cars with puzzlement.