closemouthed
adjEtymology From close + mouthed.
1
reticent, secretive or uncommunicative
- 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.1852, James Fenimore Cooper, Home as found:
- Instructors were notoriously closemouthed about their gunnery techniques.2001, C. R. Anderegg, Sierra Hotel: flying Air Force fighters in the decade after Vietnam: