mysteriously

adverb

mys·​te·​ri·​ous·​ly mi-ˈstir-ē-əs-lē 

: in a mysterious manner : in a way that is difficult to explain or comprehend

documents that have mysteriously disappeared

smiling mysteriously

"I've got the key to my castle in the air, but whether I can unlock the door remains to be seen," observed Jo mysteriously.

—Louisa May Alcott

Examples of mysteriously in a Sentence

Recent Examples on the Web

An international cast fueled a show that featured people gifted with superpowers around the world that had a mysteriously ominous connection. — Maira Garcia, Los Angeles Times, 17 Aug. 2026

The film, written and directed by David Robert Mitchell, stars McGregor and Hathaway as suburban parents in 1982 whose neighborhood is mysteriously transported to prehistoric times. — ABC News, 16 Aug. 2026

Hathway plays Verity Crawford, a best-selling author who mysteriously loses her ability to walk, talk, and write. — Hershal Pandya, Vulture, 11 Aug. 2026

The police arrested her and held her for perhaps a week, after which she was mysteriously released. — David Denby, New Yorker, 10 Aug. 2026

Word History

First Known Use

15th century, in the meaning defined above

Rhymes for mysteriously

• deliriously
• imperiously
• seriously