What does cacogenic mean?
Cacogenic is an adjective meaning tending to cause hereditary deterioration in offspring. It derives from Greek roots: kakos, meaning bad, and genēs, meaning born or produced, making it the direct opposite of eugenic, which denotes improvement of inherited qualities. The word rose to prominence in the early twentieth century among proponents of eugenics, who used it to label people they considered sources of undesirable hereditary traits — individuals deemed cacogenic were targets of forced sterilization and other coercive policies. Because the underlying science was flawed and the movement it served is now widely condemned, cacogenic survives mainly as a historical term, encountered in scholarly writing about the eugenics era rather than in everyday speech. Its rarer cousin dysgenic carries much the same sense and remains somewhat more current. When using cacogenic today, writers should be aware of its troubling associations: it evokes a period when pseudoscientific judgments about human worth were given official sanction. Understanding the word is valuable chiefly for reading the literature of that period critically and recognizing how language once lent respectability to discriminatory ideas.
adjectiveRelating to or producing hereditary deterioration of offspring; in early 20th-century eugenics terminology, describing people considered to carry traits deemed undesirable and therefore discouraged from reproducing.
- (Of factors or conditions) tending to produce hereditary deterioration in offspring.
- (Historical, of people) deemed, under now-discredited eugenic doctrine, to be a source of hereditary degeneration.
"The pamphlet's cacogenic rhetoric reflected the pseudoscientific anxieties of the era."
"Critics argued the policy was driven by a cacogenic fear of inherited weakness rather than sound genetics."
"Early twentieth-century textbooks sometimes classified entire families as cacogenic, a practice modern science has thoroughly repudiated."
In the heyday of eugenics, 'cacogenic' was a label stamped on those deemed 'unfit' to breed — a chilling word from a discredited movement.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of cacogenic
Cacogenic comes from the Greek elements kakos ('bad') and genēs ('born' or 'produced'), combined on the model of Francis Galton's earlier coinage eugenic ('well-born'). It emerged in the late nineteenth and early twentieth centuries within English-language eugenics literature as a technical counterpart to eugenic. Related formations include dysgenic and the broader family of Greek-derived caco- words such as cacophony and cacography, all built on kakos.
How cacogenic is actually used
Rare and largely obsolete outside historical discussions of the eugenics movement. It carries strongly negative connotations and is best used when discussing that period's pseudoscientific language.
Easily confused with cacogenic
Eugenic refers to improving the inherited qualities of offspring, whereas cacogenic refers to degrading them — the two are near-opposites.