Wiktionary
vb. 1 (&lit raise eyebrows English) 2 (context idiomatic English) To cause surprise. 3 (context idiomatic English) To cause mild disapproval.
Usage examples of "raise eyebrows".
It would most certainly raise eyebrows if they were seen leaving here together in the morning.
Riderless horses ordinarily didn't raise eyebrows in Mejis, but when they were saddled—.
A married couple isn't going to raise eyebrows or cause questions to be asked.
The skin over his forehead wrinkled the slightest bit as he made an attempt to threateningly raise eyebrows he did not possess.
I got it from more than five hundred large government and corporate accounts, no chunk big enough to raise eyebrows from any one of them.
Happily, the father was still grateful, though he cautioned Adrian that his intervention might raise eyebrows.
The gesture'd probably raise eyebrows among the spectators used to the formality of court etiquette.