Synonyms of 'confidential'
She accused them of leaking confidential information.
Soldiers have been training at a secret location.
He held a private meeting with the country's political party leaders.
He wrote about the intimate details of his family life.
off the record
Those remarks were supposed to be off the record.
Though these meetings were hush-hush there were sometimes leaks.
closed or closed source (computing)
He adopted a confidential tone of voice.
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Someone who is faithful to a person, organization, idea, or activity remains firm in their belief in them or support for them.
Older Americans are among this country's most faithful voters.
She had remained faithful to her husband.
the old familiar relationship
Thesaurus for confidential from the Collins English Thesaurus
Information that is confidential is meant to be kept secret or private.