mys·​te·​ri·​ous | \ mi-ˈstir-ē-əs How to pronounce mysterious (audio) \

Definition of mysterious

1a : 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

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Other Words from mysterious

mysteriousness noun

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.
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Recent Examples on the Web

What started life in 1884 as an unfinished farmhouse on about 162 acres in California’s Santa Clara Valley has become one of the most recognizable and notoriously mysterious mansions in American history. David Nash, House Beautiful, "Inside the Winchester Mystery House, the Craziest Home in the Country," 15 May 2019 Parents are tricky figures, intimately familiar and simultaneously mysterious; creators who are also, to some degree, strangers. Elizabeth Winkler, WSJ, "‘The Beneficiary’ Review: Questions of Inheritance," 6 May 2019 Set in the 1930s Dust Bowl era, Robbie stars as Allison, a mysterious and thrill-seeking bounty hunter who is surprisingly chic (refer back to the time era and situation). Isiah Magsino, Vogue, "Margot Robbie Brings Femme Fatale to the Screen in Dreamland," 2 May 2019 Jennifer Lopez’s engagement rings are closely watched because they have been known to impact the diamond market in mysterious and profound ways. Stellene Volandes, Town & Country, "Everything You Need to Know About Jennifer Lopez's Engagement Ring From Alex Rodriguez," 10 Mar. 2019 Since Bran spent the duration of episode three warging from beginning to end, fans have been endlessly speculating as to what the mysterious character may have really been up to. Lucy Wood, Marie Claire, "'Game of Thrones' Bran Stark Finally Explained What He Was Actually Doing During the Battle of Winterfell," 10 May 2019 All of a sudden this mysterious character comes out of nowhere. Tamara Fuentes, Seventeen, "All the People Who Could've Killed Nolan Hotchkiss on "Pretty Little Liars: The Perfectionists"," 28 Mar. 2019 Consider Sam Elliott's mysterious character for your Halloween costume instead. Taysha Murtaugh, Country Living, "11 DIY Men’s Halloween Costumes Every Cool Dad Will Appreciate," 1 Aug. 2018 And there are those mysterious Chinese-speaking characters, who appeared as members of a military last episode and as businesspeople at the Mesa Hub in Season 1. Sandra Upson, WIRED, "Westworld Recap, Season 2 Episode 8: The Great Ghost Nation Mystery," 11 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'mysterious.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of mysterious

1578, in the meaning defined at sense 1a

History and Etymology for mysterious

mystery entry 1 + -ous, probably after Middle French mysterieux

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Statistics for mysterious

Last Updated

7 Jun 2019

Look-up Popularity

Time Traveler for mysterious

The first known use of mysterious was in 1578

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More Definitions for mysterious



English Language Learners Definition of mysterious

: strange, unknown, or difficult to understand


mys·​te·​ri·​ous | \ mi-ˈstir-ē-əs How to pronounce mysterious (audio) \

Kids Definition of mysterious

: strange, unknown, or hard to understand or explain a mysterious noise a mysterious stranger

Other Words from mysterious

mysteriously adverb She mysteriously disappeared.

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Comments on mysterious

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