Definition of mysterious in English:

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Pronunciation: /mɪˈstɪərɪəs/


1Difficult or impossible to understand, explain, or identify: his colleague had vanished in mysterious circumstances a mysterious benefactor provided the money
More example sentences
  • It'll explain all about this mysterious new boy that none of the girls knew about.
  • In mysterious circumstances the gold disappeared leaving only its legend, and a map, behind.
  • He was allowed to escape to the USA where he died in mysterious circumstances.
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;
arcane, recondite, secret, esoteric, occult, cryptic, hidden, concealed, supernatural, mystical
1.1(Of a person) deliberately enigmatic: she was mysterious about herself but said plenty about her husband
More example sentences
  • This will all be done from a floating fortress, a mysterious place of unrivaled dark glory.
  • 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.
enigmatic, inscrutable, secretive, sphinx-like, cloak-and-dagger, reticent, non-committal, discreet, evasive, furtive, surreptitious, covert;
Military  black



Example sentences
  • ‘I wanted to retain a kind of magical mysteriousness,’ says Caple.
  • It has a striking mysteriousness, a haunting eeriness.
  • The mysteriousness can itself contribute to the effect of the poem.


Late 16th century: from French mystérieux, from mystère 'mystery'.

Words that rhyme with mysterious

cinereous, deleterious, imperious, Nereus, serious, Tiberius

For editors and proofreaders

Line breaks: mys¦teri|ous

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