dysgenic

[dis-jen-ik] /dɪsˈdʒɛn ɪk/
adjective, Pathology
1.
pertaining to or causing degeneration in the type of offspring produced.
Compare eugenic.
Origin
1910-15; dys- + -genic
British Dictionary definitions for dysgenic

dysgenic

/dɪsˈdʒɛnɪk/
adjective
1.
of, relating to, or contributing to a degeneration or deterioration in the fitness and quality of a race or strain
2.
of or relating to dysgenics
dysgenic in Medicine

dysgenic dys·gen·ic (dĭs-jěn'ĭk)
adj.
Relating to or causing the deterioration of hereditary qualities in offspring.