IPA: /ˈfraʊnər/
KK: /ˈfraʊnər/
A person who has a facial expression showing disapproval or unhappiness, typically by lowering their eyebrows and wrinkling their forehead.
The frowner at the meeting made everyone feel uncomfortable with his serious expression.
Frowner → It is formed from "frown" (from Old English "frowen", meaning to wrinkle the brow) and "-er" (meaning a person who). A frowner is a person who wrinkles their brow, typically indicating displeasure or disapproval.
Think of someone who 'wrinkles their brow' when they are unhappy — that's what a frowner does.