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mysterious Line breaks: mys¦teri|ous
Pronunciation: /mɪˈstɪərɪəs/

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
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.
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
Definition of mysterious in:
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