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 …

  • 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.
  • 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 …

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

    "Mysterious" refers to something that is difficult or impossible to understand, explain, or identify. It often pertains to circumstances, situations, or objects that are characterized by secrecy, obscurity, or are …

    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, amazement, or awe: a …

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

    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, amazement, or awe: a …

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

    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.

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