(n.) A dull old fellow; a person behind the times, over-conservative, or slow; -- usually preceded by old.

Methuselah antediluvian antique back number conservationist conservatist conservative dad diehard dodo dotard elder fossil fud fuddy-duddy granny has-been laudator temporis acti longhair matriarch mid-Victorian mossback old believer old crock old dodo old fart old fogy old liner old man old poop old school old woman old-timer patriarch pop pops reactionary regular old fogy relic right-winger rightist senile square standpat standpatter starets stick-in-the-mud traditionalist ultraconservative