ˈdēˌizəm noun
( -s )
Usage: sometimes capitalized
Etymology: French déisme, from Latin deus god + French -isme -ism — more at deity
: a rationalistic movement of the 17th and 18th centuries whose adherents generally subscribed to a natural religion based on human reason and morality, on the belief in one God who after creating the world and the laws governing it refrained from interfering with the operation of those laws, and on the rejection of every kind of supernatural intervention in human affairs