ἀνηδονία

Anhedonia was coined in 1896 by Théodule-Armand Ribot, a French psychologist, in his book The Psychology of the Emotions. He assembled it from Greek parts: an- (without) and hēdonē (pleasure). The word did not exist in ancient Greek. Ribot built it to fill a gap in clinical vocabulary — there was no precise term for the specific inability to experience pleasure, as distinct from sadness, depression, or apathy. A person with anhedonia is not necessarily sad. They simply cannot feel good.

William James, the American psychologist, had described similar states in his 1890 Principles of Psychology, but without a dedicated word. Ribot's coinage gave clinicians a tool for diagnosis. The word entered English psychiatric literature within a decade of its creation. By the early twentieth century, anhedonia was established as a clinical term, though it remained largely unknown to non-specialists.

The DSM-III in 1980 listed anhedonia as a core symptom of major depressive disorder, alongside depressed mood. This was a significant clinical decision: it meant that a person could be diagnosed with depression without feeling sad, provided they had lost the capacity for pleasure. The word had moved from a French psychologist's neologism to a diagnostic criterion used by every psychiatrist in the country.

Woody Allen's 1977 film Annie Hall was originally titled Anhedonia. The studio insisted on the change, arguing that no one would see a film they couldn't pronounce. Allen kept the concept — the film is about a man who cannot enjoy what he has — but lost the word. The title change is its own small allegory: the condition is everywhere, but the name for it remains unfamiliar. Most people who have experienced anhedonia have never heard the word.