Ateizm, tanrınıñ yada tanrılarnıñ barlığına bolan inancnıñ yoqluğudır. Bu fikir aqımına dahil bolanlarğa "ateist" denir.[1][2][3] Ateistler, bazı qurumlar ve kişiler tarafından "tanrıtanımaz" bolaraq isimlendirilmektedir.[4] Ateizm inanç qoşullanmalarını, hayaliy yaratıqlarnı ve olaylarnı red ete. Ateist baqış açısınen tanrınıñ yanı sıra tüm metafizik inançlar ve tüm ruhaniy varlıqlarda red ettile.[5]
Uluslararası Ateist Birligi tarafından 2007 yılında qabul ettilgen ateizm timsalı
in Flynn 2007, p. 35: "The terms ATHEISM and AGNOSTICISM lend themselves to two different definitions. The first takes the privative a both before the Greek theos (divinity) and gnosis (to know) to mean that atheism is simply the absence of belief in the gods and agnosticism is simply lack of knowledge of some specified subject matter. The second definition takes atheism to mean the explicit denial of the existence of gods and agnosticism as the position of someone who, because the existence of gods is unknowable, suspends judgment regarding them ... The first is the more inclusive and recognizes only two alternatives: Either one believes in the gods or one does not. Consequently, there is no third alternative, as those who call themselves agnostics sometimes claim. Insofar as they lack belief, they are really atheists. Moreover, since absence of belief is the cognitive position in which everyone is born, the burden of proof falls on those who advocate religious belief. The proponents of the second definition, by contrast, regard the first definition as too broad because it includes uninformed children along with aggressive and explicit atheists. Consequently, it is unlikely that the public will adopt it."