Fuddy-duddy

British Slang

Definition

A fussy, old‑fashioned person who’s resistant to change and overly conventional.

Examples

"Don’t be such a fuddy-duddy—Mum, everyone pays with their phone now."

"The new manager’s a right fuddy-duddy, insisting we print emails and file them in binders."

"Grandad’s a lovable fuddy-duddy who refuses to swap his vinyl for streaming."