mystery, problem, enigma, riddle, puzzle mean something which baffles or perplexes. mystery applies to what cannot be fully understood by reason or less strictly to whatever resists or defies explanation. …

MYSTERY definition: anything that is kept secret or remains unexplained or unknown. See examples of mystery used in a sentence.

Mystery Science offers open-and-go lessons that inspire kids to love science. The hook, visuals, and activity have all been prepared for you. Less prep, more learning.

If you talk about the mystery of someone or something, you are talking about how difficult they are to understand or know about, especially when this gives them a rather strange or magical quality.

MYSTERY definition: 1. something strange or unknown that cannot be explained or understood: 2. a story, often about a…. Learn more.

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

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

Jun 5, 2025 · Mystery novels are often called “whodunnits” because they turn the reader into a detective trying to figure out the who, what, when, and how of a particular crime.

6 days ago · mystery (countable and uncountable, plural mysteries) The truth behind the events remains a mystery. The case was that of a murder. It had an element of mystery about it, however, which was …

any affair, thing, or person that presents features or qualities so obscure as to arouse curiosity or speculation: The masked guest is an absolute mystery to everyone.