mysterious
adjective
mys·te·ri·ous
mi-ˈstir-ē-əs 
1
a
: of, relating to, or constituting mystery
the mysterious ways of God
b
: exciting wonder, curiosity, or surprise while baffling efforts to comprehend or identify : mystifying
heard a mysterious noise
a mysterious stranger
a mysterious plane crash
a mysterious illness
2
: stirred by or attracted to the inexplicable
… to help a mysterious wizard … ward off the end of the world with blood sacrifices.—
Robert Houston
Robert Houston
mysteriousness
noun
Synonyms
Examples of mysterious in a Sentence
the mysterious ways of nature
We heard a mysterious noise outside our tent.
He died under mysterious circumstances.
A mysterious illness has been spreading through the city.
There's something mysterious about that old woman.
Her behavior was very mysterious.
Recent Examples on the Web
The film, which sees Ash and his traveling companions Misty and Brock go to a mysterious island where they’re caught up in the ultrastrong legendary Pokémon Mewtwo’s revenge plot against the cruel world that created him, was a high-water mark for Pokémon.
—James Grebey, Vulture, 9 Nov. 2024
The deer, knowing by some mysterious means that his would-be slayer is a novice, stands still, looking with amusement at buck fever’s latest victim.
—Jack O’Connor, Outdoor Life, 6 Nov. 2024
Photograph: NurPhoto/Getty Images For much of this summer, a mysterious group of hackers carried out a landmark spree of major data breaches, all targeting customers of the cloud data storage company Snowflake.
—Matt Burgess, WIRED, 5 Nov. 2024
The most mysterious song on the internet, which thousands of devoted sleuths have been trying to identify since 2007, finally has a name.
—Jon Blistein, Rolling Stone, 5 Nov. 2024
See all Example Sentences for mysterious 
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James Grebey, Vulture, 9 Nov. 2024
The deer, knowing by some mysterious means that his would-be slayer is a novice, stands still, looking with amusement at buck fever’s latest victim.
—Jack O’Connor, Outdoor Life, 6 Nov. 2024
Photograph: NurPhoto/Getty Images For much of this summer, a mysterious group of hackers carried out a landmark spree of major data breaches, all targeting customers of the cloud data storage company Snowflake.
—Matt Burgess, WIRED, 5 Nov. 2024
The most mysterious song on the internet, which thousands of devoted sleuths have been trying to identify since 2007, finally has a name.
—Jon Blistein, Rolling Stone, 5 Nov. 2024
See all Example Sentences for mysterious
Dictionary Entries Near mysterious
Cite this Entry
“Mysterious.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mysterious. Accessed 21 Nov. 2024.
Copy CitationKids Definition
mysterious
adjective
mys·te·ri·ous
mis-ˈtir-ē-əs
: containing, suggesting, or presenting a mystery
mysterious noises
also
: difficult or impossible to understand
the mysterious ways of nature
mysteriously
adverb
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