MYSTERIOUS Synonyms: 143 Similar and Opposite Words

mysterious

adjective

mi-ˈstir-ē-əs

Definition of mysterious

as in cryptic

being beyond one's powers to know, understand, or explain the huge stone statues on Easter Island are ancient, mysterious, and haunting

Synonyms & Similar Words

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Antonyms & Near Antonyms

as in ambiguous

having an often intentionally veiled or uncertain meaning the stranger's mysterious prediction

Synonyms & Similar Words

Antonyms & Near Antonyms

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 mysterious As on television, Seyfried nails Holmes’s wide eyes, unsteady mannerisms, deep voice, and mysterious vocal cadence that makes the character both unreal and oddly human. — Jackson McHenry, Vulture, 17 Oct. 2026 Days into their expedition, the team searching for Amelia Earhart’s missing plane is battling severe weather — and racing to identify a mysterious object that could finally solve the aviator's disappearance. — Andrea Margolis, FOXNews.com, 16 Oct. 2026 Fans of the genre will be satisfied by the whodunit – the question of how something happened and the mysterious nature of it. — Jesse Whittock, Deadline, 16 Oct. 2026 Produced by Yara Goubran) When a mysterious epidemic begins infecting women in a remote fishing village, fear quickly turns the community against them. — Essie Assibu, Variety, 16 Oct. 2026 See All Example Sentences for mysterious

Recent Examples of Synonyms for mysterious

Adjective

The cryptic eco-disaster project will represent a loss of hundreds of millions when all is said and done.

— Matt Donnelly, Variety, 9 Oct. 2026
Emanuel’s cryptic comment comes amid claims that Meghan was in early talks to star in the third season of Guy Ritchie’s Netflix series The Gentlemen.

— Allison DeGrushe, StyleCaster, 30 Sep. 2026

Definition of cryptic

Adjective

Jones, Cullen and Locke are pleased to hear how effective the ambiguous ending to Black Church Bay is.

— Lily Ford, HollywoodReporter, 21 Oct. 2026
That’s a question for next season, but their flirtation has been built around Sid’s ambiguous motives from the beginning.

— Scott Tobias, Vulture, 21 Oct. 2026

Definition of ambiguous

Adjective

Swamped by allegations of fraud, the actions of the company and its enigmatic CEO, Elizabeth Holmes, shone a harsh light on problems with scientific start-ups.

— Mary Randolph, Scientific American, 16 Oct. 2026
That's especially prevalent in the Oversized Graphic T-Shirt with enigmatic dates on the back -- those are already causing a stir in the fan community.

— ABC News, ABC News, 15 Oct. 2026

Definition of enigmatic

Adjective

In these situations, withdrawing into a literal or symbolic dark room—avoiding sources of stress and going to a safe place—can be adaptive in the short term.

— Maia Szalavitz, Scientific American, 20 Oct. 2026
Connie Britton and Sam Nivola lead the series created by Nick Paley that blends mystery, dark comedy and the awkwardness of adolescence.

— Maira Garcia, Los Angeles Times, 20 Oct. 2026

Definition of dark

Adjective

Take The Night Veils, for example, which seeks to capture the spirit of the night through fragrances that can best be described as primal and mystic.

— Conçetta Ciarlo, Vogue, 23 Oct. 2026
Two translations—of poems by the Indian mystic Mirabai and the contemporary Romanian poet Radu Vancu—seek to inhabit and transcend the history that holds up the present.

— Craig Morgan Teicher, Literary Hub, 1 Oct. 2026

Definition of mystic

Adjective

But Sung, Bennett and Miller stayed his order, finding that the California deployment could go forward under an obscure and virtually untested subsection of the law.

— Sonja Sharp, Los Angeles Times, 23 Oct. 2026
The area sits within the Lake Superior clay plain, where the surrounding soil is largely composed of clay, which can make the water murky and obscure objects beneath the surface.

— Andrea Margolis, FOXNews.com, 23 Oct. 2026

Definition of obscure

Adjective

Superposition is an uncanny aspect of quantum mechanics that allows particles to be in multiple states at once—such as literally here and there simultaneously.

— Philipp Strasberg, Scientific American, 20 Oct. 2026
Cops released surveillance photos of the shooter, whose getup bore an uncanny resemblance to the Marvel character Deadpool.

— Julian Roberts-Grmela, New York Daily News, 17 Oct. 2026

Definition of uncanny

Adjective

While countries like Sweden and France are pursuing similar deep geological repositories, Finland has officially crossed the finish line first.

— Mrigakshi Dixit, Interesting Engineering, 23 Oct. 2026
John Anderson, the beloved hitmaker known for his deep country warble, died on Wednesday at the age of 71.

— Charisma Madarang, Rolling Stone, 22 Oct. 2026

Definition of deep

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mysteries

mysterious

mysteriousness

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“Mysterious.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/mysterious. Accessed 26 Oct. 2026.

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Synonyms of mysterious

adjective

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