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Synonyms

confidential

American  
[kon-fi-den-shuhl] / ˌkɒn fɪˈdɛn ʃəl /

adjective

  1. spoken, written, acted on, etc., in strict privacy or secrecy; secret.

    a confidential remark.

    Synonyms:
    private, restricted
  2. indicating confidence or intimacy; imparting private matters.

    a confidential tone of voice.

    Synonyms:
    familiar, intimate
  3. having another's trust or confidence; entrusted with secrets or private affairs.

    a confidential secretary.

    Synonyms:
    private, trustworthy
  4. (of information, a document, etc.)

    1. bearing the classification confidential, usually being above restricted and below secret.

    2. limited to persons authorized to use information, documents, etc., so classified.


confidential British  
/ ˌkɒnfɪˈdɛnʃəl /

adjective

  1. spoken, written, or given in confidence; secret; private

  2. entrusted with another's confidence or secret affairs

    a confidential secretary

  3. suggestive of or denoting intimacy

    a confidential approach

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Synonym Usage

See familiar.

Other Word Forms

Etymology

Origin of confidential

First recorded in 1645–55; from Latin confīdenti(a) confidence + -al 1

Explanation

If you get a letter stamped confidential, that means you're not supposed to tell anyone else what it says. It's private and you're not supposed to blab about it. Confidential suggests that you're being let in on a secret — as in Kitchen Confidential, the title of a book by Anthony Bourdain, a famous chef, in which he tells unappetizing stories about the restaurant industry. If you confide in someone, you are trusting him or her with confidential or secret information. Choose your confidants wisely!

Keep Reading on Vocabulary.com

Vocabulary lists containing confidential

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

However, when a VC on a board has confidential information about one company that can be easily passed to the competitor, that’s when things become problematic.

From The Wall Street Journal ● Oct. 9, 2026

Pinto, 37, disclosed a tranche of confidential football documents, including emails and financial records relating to the English Premier League side.

From BBC ● Oct. 9, 2026

In another case, the audit found that a high-ranking law enforcement officer misused confidential databases to look up family members and other employees without legitimate business purposes.

From Los Angeles Times ● Oct. 8, 2026

She said: "Her Childline, the confidential counselling service for young people in distress, helped so many children and The Silver Line was aimed at older people suffering loneliness and isolation."

From BBC ● Oct. 1, 2026

“Frankly,” Ashe scraped his chair closer and lowered his voice into a confidential whisper, “the house isn’t to be only for myself. I’m getting married!”

From "I, Robot" by Isaac Asimov

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