English

Adjective

closemouthed ‎(comparative more closemouthed, superlative most closemouthed)

1. reticent, secretive or uncommunicative
   • 1852 James Fenimore Cooper - Home as found

     As much so as possible; they have hardly a way that you would like, my dear ma'am; and are as closemouthed as if they were afraid of committing themselves.

   • 2001 C. R. Anderegg - Sierra Hotel: flying Air Force fighters in the decade after Vietnam

     Instructors were notoriously closemouthed about their gunnery techniques.

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