dys·gen·ic adjective alsodis·gen·ic\dəsˈjenik, (ˈ)dis|j-\ Etymology:dys- or dis- (I) + -genic : detrimental to the hereditary qualities of a stock (as of man) or tending to counteract racial improvement through an influence bearing on reproduction : biologically defective or deficient — contrasted with eugenic • dys·gen·i·cal·ly\-nə̇k(ə)lē\adverb