idol·a·trous \(ˈ)ī|dälə.trəs sometimes ə̇ˈd-\adjective : of or relating to idolatry: as a.: being or resembling idolatry < idolatrous veneration for antiquity > b.: given to or practicing idolatry < an idolatrous worshiper > • idol·a·trous·lyadverb • idol·a·trous·nessnoun-es