eyebrow-raising1
/ˈʌɪbraʊˌreɪzɪŋ/noun
The expression of censure, surprise, or scepticism; an instance of this. Compare to raise one's eyebrows.
Origin
Late 19th century; earliest use found in Edmund Yates (1831–1894), journalist and novelist. From eyebrow + raising.
eyebrow-raising2
/ˈʌɪbraʊˌreɪzɪŋ/adjective
1That expresses censure, surprise, or scepticism, especially habitually or frequently. Compare to raise one's eyebrows. rare.
2Surprising, shocking; causing disapproval or scepticism. Compare to raise eyebrows.
Origin
Early 20th century. From eyebrow + raising. Compare earlier to raise one's eyebrow(s) (or an eyebrow), eyebrow-raising.