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

But the future of early-career employment is increasingly ambiguous, largely due to the rapid rise of artificial intelligence, according to the National Association of Colleges and Employers.

— Jessica Dickler, CNBC, 15 Oct. 2026
From here on out, the authorship of Tae-ju’s life is ambiguous, as well as constantly in flux, buffeted by the whims and suggestions of others, as well as by her own impulses.

— Guy Lodge, Variety, 14 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

Chalk it up to my obsession with Twin Peaks, affinity for mossy landscapes, and lifelong fascination with all things misty and mystic; the Pacific Northwest has always felt like a second home.

— Nicole Kliest, Vogue, 11 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

What came next would eventually turn an obscure Medicaid settlement into a criminal investigation.

— Christopher Spata, Miami Herald, 17 Oct. 2026
There was very little original local production, and people were finding their favourite TV shows through obscure corners of the web.

— Annika Pham, Variety, 16 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

Both have built much of their appeal on opposition to the political establishment, the promise to wish away budget constraints, and deep hostility toward the European Union.

— Nicholas Bequelin, Time, 16 Oct. 2026
Acting was his guiding passion, but his deep love for the avant-garde helped till the ground for the city’s theatrical renaissance that the 1984 Olympic Arts Festival catalyzed.

— Theater Critic, Los Angeles Times, 15 Oct. 2026

Definition of deep

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“Mysterious.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/mysterious. Accessed 21 Oct. 2026.

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Synonyms of mysterious

adjective

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