ˌantɪdɪˈluːvɪən ˈæntɪˌkweɪtɪd ɑː.ˈkeɪ.ɪk ɑɹ.ˈkeɪ.ɪk so extremely old as seeming to belong to an earlier period a ramshackle antediluvian tenement antediluvian ideas archaic laws