keep one's mouth shut

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Related to keep one's mouth shut: Shut Mouth
ThesaurusAntonymsRelated WordsSynonymsLegend:
Verb1.keep one's mouth shut - refrain from divulging sensitive information; keep quiet about confidential information; "Don't tell him any secrets--he cannot keep his mouth shut!"
References in periodicals archive ?
It often needs an open mind to keep one's mouth shut.
But there are times when one should keep one's mouth shut.
Nor is it to be seen as yielding to the cowardly imperative to keep one's mouth shut in order to hang on to one's privilege.