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 On the success of their first solved mystery, Nick and Audrey are now professional private investigators working at their own agency. Declan Gallagher, EW.com, 26 July 2025 The mystery of what his powers were lingered for years. Siddhant Adlakha, Vulture, 25 July 2025 The case garnered national attention as the men's cause and manner of death were shrouded in mystery for more than a year. Natalie Neysa Alund, USA Today, 25 July 2025 Fox went on to appear in 2009's Sherlock Holmes and 2018's Christmas Survival, as well as guest starring in several British mystery television shows, including Midsomer Murders, Death in Paradise and Downton Abbey. Jordana Comiter, People.com, 15 July 2025 See All Example Sentences for mystery
Recent Examples of Synonyms for mystery
Noun
  • Even at nearly 37 years old, Westbrook is still basketball’s greatest enigma and a good two-way bench player on the right night.
    Mat Issa, Forbes.com, 30 July 2025
  • From its flag to its roads, the state strikes me as a curious blend of contrasts and quirks — perhaps simply an enigma I’ve never been motivated to solve.
    Reader Commentary, Baltimore Sun, 25 July 2025
Noun
  • The Mariners reportedly are still in on their former third baseman and would be the final piece to Seattle's puzzle.
    Hunter Mulholland, MSNBC Newsweek, 26 July 2025
  • Need help with today’s Connections: Sports Edition puzzle?
    Mark Cooper, New York Times, 26 July 2025
Noun
  • This research reveals a new mechanism that solves a long-standing riddle – the stability of symbioses involving multiple unrelated partners.
    Guillaume Chomicki, The Conversation, 10 July 2025
  • An exhaustive in-depth investigation by The Post — okay, fine, a few conversations with staffers in Utah’s program — didn’t reveal any concrete answers to this particular riddle.
    Luca Evans, Denver Post, 7 July 2025
Noun
  • This is her secret to being able to pack for a month in Europe in a carry-on.
    Lola Méndez, Travel + Leisure, 23 July 2025
  • Their identities had remained a secret until the hearing today, with the pair simply referred to as D.M. and B.F. in court filings.
    Chris Spargo, People.com, 23 July 2025
Noun
  • More: Silver carp, harmful to fish and water, detected in western Wisconsin's Chippewa and Black rivers The group had done their homework on why these fish are problems.
    Madeline Heim, jsonline.com, 24 July 2025
  • Each subject line should feel like it was written specifically for one person dealing with a real problem today.
    Jodie Cook, Forbes.com, 23 July 2025

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Cite this Entry

“Mystery.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/mystery. Accessed 6 Aug. 2025.

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