The meaning of MYSTERIOUS is of, relating to, or constituting mystery. How to use mysterious in a sentence.

MYSTERIOUS definition: full of, characterized by, or involving mystery. See examples of mysterious used in a sentence.

The costume is mysterious in its poverty as well as in its flair for incoherent details.

1. involving or full of mystery: a mysterious phone call. 2. suggesting or implying a mystery: a mysterious smile. 3. puzzling; inexplicable: a mysterious inscription on an ancient tomb.

Someone or something that is mysterious is strange and is not known about or understood. He died in mysterious circumstances. A mysterious illness confined him to bed for over a month. The whole …

Jan 20, 2026 · Adjective mysterious (comparative more mysterious, superlative most mysterious) Of unknown origin. Synonym: untraceable He received a mysterious phone call this morning. Having …

Find 109 different ways to say MYSTERIOUS, along with antonyms, related words, and example sentences at Thesaurus.com.

Definition of mysterious adjective from the Oxford Advanced Learner's Dictionary. difficult to understand or explain; strange. He died in mysterious circumstances. Fate works in mysterious ways. A …

Welcome to the MysteriousPress.com page! This site features classic mystery and crime fiction reissued in ebook form and distributed by Open Road Media. For new books from The Mysterious Press, …

Something that is mysterious has a secret-like quality that makes it hard to understand or define, like your mysterious answers that made your friends curious about what you were really up to.