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.

We’re here because we believe everyone deserves to be seen, understood, and embraced—flaws, fears, and all. Plushie Dreadfuls was founded in 2015 and is a brand created by Mysterious, a …

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 …

5 days ago · Police are investigating after unusual signs containing names and a license plate number appeared at Nancy Guthrie’s home, now collected as evidence.

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