Evangelism simply means spreading the gospel. It's a biblical term.
Eg 2 Timothy 4:5
King James Bible
But watch thou in all things, endure afflictions, do the work of an evangelist, make full proof of thy ministry.
Fundamentalism is something else and is not particularly biblical though they claim to interpret scripture or whatever book they deem holy extremely literally. I mentioned Mormons, well they also have fundamentalism in their religion. i.e FLDS practices polygamy. Apparently it's because Jacob had 2 wives and 2 concubines..?!
FLDS stands for Fundamentalist Latter Day Saints.
Yea not sure why they are 'Latter Day' saints...as opposed to what...Early Day saints?