''Synopsis:'' {{Infobox_Contents | topic_name = Atheism is the lack of belief in a God or gods, from the Greek a + | subtopics = [[theosAgnosticism]], literally "without God".| opinion_pieces = {{short_opinions}} | }}
----__TOC__{{topics}}* [[Agnosticism]]Atheism is the belief that there is no God.
{{opinions}}===Etymology===
==Main article==The word is derived from the Greek words ''a'' and ''[[theos]]'', literally "without God".
Atheism ===Definition=== Today, atheism is simply the lack of belief in a that there is no God or gods, from the Greek a + theos, literally "without God". However, in In the pasthowever, belief in a particular God or gods along with denial of other gods has been held to be atheism. For instance, Christians were accused of atheism for not believing in the Roman gods.
Atheism is clearly incompatible with Christianity, since all branches of the faith accept the existence of God as a central tenet of belief.
===Types of atheism===
Atheism can be divided into two main positions: