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

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

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

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. …

Definition of mysterious adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

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.

Synonyms for MYSTERIOUS: cryptic, enigmatic, mystic, uncanny, obscure, dark, deep, unexplainable; Antonyms of MYSTERIOUS: understandable, intelligible, obvious, apparent, …

"Mysterious Werdo" is a Werdo available on Fire Haven. It was added alongside Epic Dermit and Epic Bowhead on January 14th, 2026 during Version 5.2.0. "Mysterious Werdo" was created …

Dec 14, 2025 · Adjective mysterious (comparative more mysterious, superlative most mysterious) Of unknown origin. Synonym: untraceable He received a mysterious phone call this morning. …

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