Main Entry: athe·ism

Pronunciation: \ˈā-thē-ˌi-zəm\

Function: noun

Etymology: Middle French athéisme, from athée atheist, from Greek atheos godless, from a- + theos god

Date: 1546

1 archaic : ungodliness, wickedness
2 a : a disbelief in the existence of deity b : the doctrine that there is no deity