a disapproving way of referring to a religious fundamentalist (= someone who believes in traditional forms of a religion, or believes that what is written in a holy book, such as the Christian Bible, is completely true)

My enjoyment of his films is somewhat lessened by finding out that he seems to be an intolerant fundie. 等到我发现他似乎是一个不宽容的原教旨主义分子，对他电影的欣赏就有所减弱。

a disapproving way of describing something relating to or considered typical of a religious fundamentalist

They want a government that is basically a fundie, right-wing theocracy.

He belongs to some sort of fundy church, I think. 我觉得他是属于某种原教旨主义分子教会的吧。