an old fogey/fogy
An older person, especially one whose views or attitudes are considered boring or old-fashioned. Ah, don't mind that old fogey. He's just cantankerous because he isn't up to speed with the way of today's youth. I've fully embraced that I'm going to be a stodgy old fogey when I get older.
an old ˈfogey/ˈfogy(usually disapproving) (usually of an older person) a person with very old-fashioned or traditional views, opinions, etc: I’m not such an old fogey that I can’t remember what it was like to be a student.
A young person with old-fashioned views, style of dress, etc. is sometimes called a ‘young fogey’: He’s one of the young fogies who write for the ‘Spectator’.
n. an old-fashioned person; an old man. My uncle is an old fogey. He must be the most old-fashioned man in the world.