How to express "ancient style"?

A friend complained that her husband was a famous "antique", and he didn't understand half of the jokes on the Internet. He was afraid of being very much in love in public, obsessed with self-awareness and never tried anything related to novelty. In a word, "What a stubborn old man!" Conservative, conservative, conservative, conservative, stubborn. )

Literally, "stick-in-mud" means "stuck in a quagmire". It first appeared in18th century, when it was used to describe "a carriage stuck in the mud". If you have ever had such an experience-the car got stuck in the mud, you must have guessed what it was like-you couldn't push it out, you couldn't pull it, you couldn't pull it up. It's even harder than heaven. As time goes by, "conformism" is now commonly used to describe those who are conservative and old-fashioned and unwilling to try new things.

Look at the following example: you may want to try a new big slide in the water park, but your friend is not sure. You might say, "Come on! Don't be a stubborn old man! " You may want to try a new large water slide in the water park, but your friend is hesitant, so you can say, "Come on, don't be old-fashioned." )