preagricultural Syllabification: (pre·ag·ri·cul·tur·al)Pronunciation: /ˈprēˌagriˈkəlCHərəl/Definition of preagricultural adjective denoting a people, tribe, or culture that has not developed agriculture as a means of subsistence. preagricultural in other Oxford dictionaries Definition of preagricultural in the British & World English dictionary