Square oldster
Else clues• Old conservative sort
• Crusty old fellow
• Curmudgeonly guy
• Fossil
• Fuddy-dud
• Geezer
• Mossback
• Old ___
• Old ___ (not the modern type)
• Old geezer
• Old-fashioned individual
• Old-fashioned sort
• Old-timer
• One out of fashion
• One who's out of touch
• Out-of-it sort
• Stick-in-the-mud
• Stodgy old-timer
• Ultraconservative
• (informal) someone whose style is out of fashion