Other forms: traditionalists
A traditionalist wants things to stay the same. If you prefer vinyl albums to MP3 players, you just might be a traditionalist.
The noun traditionalist describes a person who believes the old ways are best, like a traditionalist who favors writing letters over sending emails. Sometimes, though, traditionalist describes someone so rigid that any new idea sounds like a bad one, like the traditionalist attitude that kept some American colonists from joining the Revolution.