SINCE 1828

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be mysterious

idiom

Definition of be mysterious

: to talk or behave in a way that makes other people feel that one must have a secret

What are you being so mysterious about?

Word by Word Definitions

mysterious play

: of, relating to, or constituting mystery
: exciting wonder, curiosity, or surprise while baffling efforts to comprehend or identify : mystifying
: stirred by or attracted to the inexplicable

See the full definition of mysterious

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