i Register
In some senses, backwoodsman is marked as informal, UK. Watch for register when choosing this word.
noun
A person who is acclimated to living in a forest area that is far removed from civilization or modern conveniences.
An uncivilized or uncultured person (according to the value judgments of the speaker).
A Peer who is seldom present in the House of Lords of the United Kingdom Parliament, who may be encouraged to attend when a very important vote is expected.