Enigma comes from a Greek word that means "to speak in riddles." It applies to things, as well as to people, that puzzle one's mind. Egypt's ancient pyramids and quantum mechanics, for …

ENIGMA definition: a puzzling or inexplicable occurrence or situation. See examples of enigma used in a sentence.

The Enigma machine is a cipher device developed and used in the early- to mid-20th century to protect commercial, diplomatic, and military communication. It was employed extensively by …

ENIGMA definition: 1. something that is mysterious and seems impossible to understand completely: 2. something that…. Learn more.

Definition of enigma noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

If you describe something or someone as an enigma, you mean they are mysterious or difficult to understand. Iran remains an enigma for the outside world. ...a story which makes clear the …

enigma noun Anything that arouses curiosity or perplexes because it is unexplained, inexplicable, or secret:

Feb 15, 2026 · Logic sorts the information in an enigma, logic determines that something is odd about this information, and logic draws inferences from an enigma's words; but logic cannot …

Enigma definition: One that is puzzling, ambiguous, or inexplicable.

a puzzling or inexplicable occurrence or situation: His disappearance is an enigma that has given rise to much speculation. a person of puzzling or contradictory character: To me he has …