What does eidetic mean?
Eidetic is an adjective used to describe mental imagery of extraordinary vividness and accuracy — most famously in the phrase "eidetic memory," which refers to the ability to recall visual information with near-photographic detail after minimal exposure. The word belongs primarily to the vocabulary of psychology and cognitive science, where "eidetic imagery" names a measurable phenomenon: some individuals, more often children, can inspect a mental image of something they have seen almost as though it were physically present. In everyday usage the term carries connotations of rare, almost uncanny mental ability, and writers often reach for it when describing artists, chess players, or savants with seemingly flawless recall. Because it is formal and technical, eidetic lends precision and authority to prose about perception and memory. It derives from the Greek eidos, meaning "form" or "shape," linking it etymologically to words like idea and ideal.
adjectiveRelating to or denoting mental images of unusual vividness, especially the ability to recall visual scenes with near-photographic precision after only brief exposure.
- Of or relating to extraordinarily vivid mental imagery, particularly the ability to retain detailed visual impressions with photographic accuracy.
"She had an eidetic memory for faces, recalling every detail of a room she had glimpsed only once."
"The artist credited her eidetic memory with allowing her to reproduce entire cityscapes from a single glance."
"In psychology experiments, children displaying eidetic imagery could describe a picture in striking detail long after it was removed from view."
A true eidetic memory lets some people 'see' a page they read minutes ago as if it were still floating before their eyes — a phenomenon so rare that scientists still argue over how many people actually have it.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of eidetic
Eidetic derives from the Greek eidos, meaning "form" or "shape," via German eidetisch, coined by psychologists around the turn of the twentieth century (notably associated with Eduard Jaensch's work on visual imagery). English adopted the term in the early twentieth century as experimental psychology investigated vivid mental imagery. It shares its Greek root with words such as idea, ideal, and ideate, all ultimately tracing back to the same notion of a perceived form or appearance.
Related word forms
How eidetic is actually used
Formal in register, appearing chiefly in psychology, neuroscience, and discussions of exceptional memory. It is most often paired with "memory" or "imagery," and is sometimes used loosely in popular writing to mean "photographic memory," though researchers treat true eidetic imagery as a distinct and rarer phenomenon. No strong regional variation; the same form is used in British and American English.
Easily confused with eidetic
"Eidetic" describes exceptionally vivid mental recall, while "idyllic" means charmingly simple and picturesque.