n.
Pronunciation: ' ā -th ē - ˌ i-z ə m
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