Definition of mysterious in English:



  • 1Difficult or impossible to understand, explain, or identify.

    ‘his colleague had vanished in mysterious circumstances’
    ‘a mysterious benefactor provided the money’
    • ‘With so much of a mysterious haze surrounding the sport, I clearly needed more information.’
    • ‘The stunning cover of this mysterious novel provides a clue to its structure.’
    • ‘In mysterious circumstances the gold disappeared leaving only its legend, and a map, behind.’
    • ‘It'll explain all about this mysterious new boy that none of the girls knew about.’
    • ‘Come to think of it, I did hear a mysterious rustle coming from the kitchen.’
    • ‘Kenny has a mysterious benefactor who paid for his drama school training.’
    • ‘A young artist has created a mysterious object in a box for a corporate assignment.’
    • ‘He massages most parts of me and I'm refreshed, and contemplate mysterious scars on his body.’
    • ‘The plays are in French, which will make the plot all the more mysterious for some people.’
    • ‘The circumstances are, of course, more mysterious than first impressions imply.’
    • ‘Death can only be thought of as mysterious when we try to understand it by imagining it.’
    • ‘There is certainly nothing mysterious about the company's growing association with golf.’
    • ‘He's the uncle of the kid who got killed in Germany under mysterious circumstances by a far right group.’
    • ‘When the mysterious visitor walks through the door, he hits him in the head with the plank of wood.’
    • ‘He was allowed to escape to the USA where he died in mysterious circumstances.’
    • ‘Two new forensic tests may have brought the mysterious case to a close.’
    • ‘He said the police had been informed and were now investigating the mysterious disappearance.’
    • ‘The next day, everyone could talk of nothing but the mysterious woman at the ball.’
    • ‘There have also been a series of mysterious disappearances in the College.’
    • ‘Should a mysterious caller come on the phone and tell you he has planted a bomb in the building where you work, what would you do?’
    puzzling, strange, peculiar, curious, funny, queer, odd, weird, bizarre, mystifying, inexplicable, baffling, perplexing, bewildering, confusing, uncanny, dark, impenetrable, incomprehensible, unexplainable, unfathomable, delphic, sibylline, unaccountable, insoluble, obscure
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    1. 1.1 (of a location) having an atmosphere of strangeness or secrecy.
      ‘a dark, mysterious, windowless building’
      • ‘His destination was the ruins of Quirigua, one of the mysterious ancient sites that had been described by travellers, but about which little was yet known.’
      • ‘She spends the weekend in a mysterious castle.’
    2. 1.2 (of a person) deliberately enigmatic.
      ‘she was mysterious about herself but said plenty about her husband’
      • ‘Nitrus looked down at his charge, following Zinc back out of the mysterious room into the main complex.’
      • ‘That mysterious room always locked up half behind the school on the left is still there.’
      • ‘You could simply read all this as a hymn to growing up in a magical, deeply mysterious city.’
      • ‘This will all be done from a floating fortress, a mysterious place of unrivaled dark glory.’
      • ‘The roof has the same sort of mysterious but simple majesty of a big barn with six wooden trusses and exposed rafters.’
      enigmatic, inscrutable, secretive, sphinx-like, cloak-and-dagger, reticent, non-committal, discreet, evasive, furtive, surreptitious, covert
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Late 16th century: from French mystérieux, from mystère ‘mystery’.