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?

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Cite this Entry

“Be mysterious.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/be%20mysterious. Accessed 18 May. 2021.

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