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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.

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

Expressing, intimating, or implying a mystery: as, a mysterious look; his manner was very mysterious and important. from the GNU version of the Collaborative International Dictionary of English.

Jan 17, 2026 · Adjective mysterious (comparative more mysterious, superlative most mysterious) Of unknown origin. Synonym: untraceable He received a mysterious phone call this morning. Having …

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

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, amazement, or awe: a …

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 …

The meaning of MYSTERIOUS is of, relating to, or constituting mystery. How to use mysterious 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. The whole …

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

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