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, inscrutable, mystical, obscure refer to that which is not easily comprehended or explained. That which is mysterious, by being unknown or puzzling, excites curiosity, …

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.

There is still so much to be learned about the mysterious civilization that vanished, but one thing is now known.

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

1 day ago · Here are all the possible answers for Mysterious crossword clue which contains 8 Letters. This clue was last spotted on November 22 2025 in the popular Eugene Sheffer …

MYSTERIOUS meaning: 1 : strange, unknown, or difficult to understand; 2 : to talk or behave in a way that makes other people feel that you must have a secret