inbred Syllabification: (in·bred)Pronunciation: /ˈinˌbred/Translate inbred | into German | into Italian Definition of inbred adjective 1produced by inbreeding:a classic inbred Englishman 2existing in a person, animal, or plant from birth; congenital:inbred disease resistance in cropsinbred in other Oxford dictionaries Definition of inbred in the British & World English dictionary