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

MYSTERIOUS meaning: 1. strange, not known, or not understood: 2. strange, not known, or not understood: . Learn more.

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, …

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. …

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

Sep 2, 2025 · mysterious (comparative more mysterious, superlative most mysterious) Of unknown origin. synonym Synonym: untraceable He received a mysterious phone call this …

There are eight meanings listed in OED's entry for the word mysterious, three of which are labelled obsolete. See ‘Meaning & use’ for definitions, usage, and quotation evidence.

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

MYSTERIOUS definition: 1. strange or unknown, and not explained or understood: 2. refusing to talk about something and…. Learn more.