as in enigma
something hard to understand or explain why my sister married that guy is still a mystery to my parents

Synonyms & Similar Words

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Synonym Chooser

How does the noun mystery differ from other similar words?

Some common synonyms of mystery are enigma, problem, puzzle, and riddle. While all these words 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.

the mystery of the stone monoliths

Where would enigma be a reasonable alternative to mystery?

While the synonyms enigma and mystery are close in meaning, enigma applies to utterance or behavior that is very difficult to interpret.

his suicide remains an enigma

When might problem be a better fit than mystery?

The words problem and mystery can be used in similar contexts, but problem applies to a question or difficulty calling for a solution or causing concern.

problems created by high technology

When is puzzle a more appropriate choice than mystery?

The synonyms puzzle and mystery are sometimes interchangeable, but puzzle applies to an enigma or problem that challenges ingenuity for its solution.

the thief's motives were a puzzle for the police

When is it sensible to use riddle instead of mystery?

Although the words riddle and mystery have much in common, riddle suggests an enigma or problem involving paradox or apparent contradiction.

the riddle of the reclusive pop star

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Recent Examples of mystery An absolute charmer, the film is an affecting look at the human-avian bond, with all its mysteries, warmth and ungainly practicalities. David Rooney, HollywoodReporter, 13 Sep. 2025 Purcell called the discovery novel, noting that while there are already known and unusual mating systems in ants, Iberian harvester ants are among the weirdest — and present more mysteries yet to be understood. Ashley Strickland, CNN Money, 13 Sep. 2025 Federal funding is about to run out for 19 active space missions studying Earth's climate, exploring the Solar System, and probing mysteries of the Universe. Stephen Clark, ArsTechnica, 12 Sep. 2025 The darkness not of mystery but of fear. Literary Hub, 12 Sep. 2025 See All Example Sentences for mystery
Recent Examples of Synonyms for mystery
Noun
  • Over time, the fate of the footage has become one of the biggest enigmas in Hollywood history.
    Dade Hayes, Deadline, 5 Sep. 2025
  • More Michael Owens/Getty Images Leonard has always been regarded as an enigma because of his chronic injury problems and his extremely introverted (and some would say odd) personality.
    Robert Marvi, MSNBC Newsweek, 3 Sep. 2025
Noun
  • How To Play Wordle Wordle is a daily word puzzle game where your goal is to guess a hidden five-letter word in six tries or fewer.
    Erik Kain, Forbes.com, 14 Sep. 2025
  • Looking for a free mini puzzle?
    Saman Shafiq, USA Today, 14 Sep. 2025
Noun
  • Here, The Athletic attempts to unravel the Ballon d’Or riddle by ranking the top 10 contenders.
    Conor O'Neill, New York Times, 15 Sep. 2025
  • Interested in solving the weekly riddle or getting more of our newsletters?
    Jayla Webb, Fort Worth Star-Telegram, 11 Sep. 2025
Noun
  • But Rawlins’ peace of mind is upended when a group of powerbrokers ask him to track down Lutisha James, a woman who Easy has met before – and who knows a secret that will disrupt the detective’s personal life too.
    Carly Tagen-Dye, PEOPLE, 12 Sep. 2025
  • But soon enough, old secrets and new foes force them back together.
    Ryan Schwartz, TVLine, 12 Sep. 2025
Noun
  • Instead of predictive policing that reinforces existing biases, envision AI that helps communities understand and address root causes of social problems.
    Cornelia C. Walther, Forbes.com, 16 Sep. 2025
  • But even the right approach to the right problem risks failure if not properly executed.
    Joel Thayer, MSNBC Newsweek, 16 Sep. 2025

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Cite this Entry

“Mystery.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/mystery. Accessed 18 Sep. 2025.

More from Merriam-Webster on mystery

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