antediluvianadjective · Level 1 SAT1so extremely old as seeming to belong to an earlier periodThe professor dismissed the curriculum as antediluvian, designed for a world that no longer existed.ModuleLevel 1RegistercommonCollectionCollection 074SAT Core planAlso in Collection 074aesthetic, vociferous, impetuous, indigenous, indigent, culpable, curt, virtuoso and 1 more