adjective mys·te·ri·ous \mis-ˈtir-ē-əs\

: strange, unknown, or difficult to understand

Full Definition of MYSTERIOUS

a :  of, relating to, or constituting mystery <the mysterious ways of God>
b :  exciting wonder, curiosity, or surprise while baffling efforts to comprehend or identify :  mystifying <heard a mysterious noise> <a mysterious stranger>
:  stirred by or attracted to the inexplicable
mys·te·ri·ous·ly adverb
mys·te·ri·ous·ness noun

Examples of MYSTERIOUS

  1. the mysterious ways of nature
  2. We heard a mysterious noise outside our tent.
  3. He died under mysterious circumstances.
  4. A mysterious illness has been spreading through the city.
  5. There's something mysterious about that old woman.
  6. Her behavior was very mysterious.

First Known Use of MYSTERIOUS


Rhymes with MYSTERIOUS

MYSTERIOUSLY Defined for Kids


adjective mys·te·ri·ous \mi-ˈstir-ē-əs\

Definition of MYSTERIOUS for Kids

:  strange, unknown, or hard to understand or explain <a mysterious noise> <a mysterious stranger>
mys·te·ri·ous·ly adverb <She mysteriously disappeared.>
mys·te·ri·ous·ness noun


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