fundamentalism

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The fact that the turmoil in the region and the advance of fundamentalism are coinciding is a classic phenomenon.
该地区动乱与原教旨主义推进恰好同时发生的事实也属于一个典型现象。
Even the Vatican has weighed in, when last week a Cardinal told the faithful to pay attention to scientific reason or risk returning to fundamentalism.
即使是梵蒂冈的推波助澜，上星期，红衣主教告诉教友们要注意科学的理性或回归原教旨主义的风险。

now it's the opposite - pseudo Islamic fundamentalism has emerged as a primary political force.

He was a religious moderate in a nation that had become infected with religious fundamentalism.
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Much like Musharraf, his claims to be an ally against fundamentalism were essentially false.
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Ronald Reagan and George W. Bush succeed even further by bringing into the coalition Christian Fundamentalism.
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the belief in old and traditional forms of religion, or the belief that what is written in a holy book, such as the Christian Bible, is completely true

Fundamentalism is the belief in the original form of a religion or theory, without accepting any later ideas.
fundamentalist