Informal; often humorous term for a person with old-fashioned attitudes
Don’t be such a fuddy-duddy—join us on the dance floor!
Не будь таким ретроградом — присоединяйся к нам на танцполе!
Informal; used attributively and predicatively to describe something or someone as old-fashioned
Her fuddy-duddy outfit looked out of place at the club.
Её старомодный наряд выглядел неуместно в клубе.