Definition

1. Adjective:
   • Prone to communicating confidential information: Describes a person who cannot keep secrets and is likely to reveal private or sensitive details.
   • Unwisely talking too much: Describes a person who talks excessively, often without thinking, leading to careless or inappropriate speech.

Usage Examples

• Adjective:
  • The project failed because a blabbermouthed employee leaked the strategy to a competitor. (Here, 'blabbermouthed' describes an employee who revealed confidential plans.)
  • Don't tell her your secrets; she's known to be blabbermouthed. (This uses the word to warn that the person is prone to sharing private information.)
  • His blabbermouthed tendencies made him a poor choice for the discreet diplomatic mission. (This example highlights the characteristic of talking too much unwisely.)

Advanced Usage

• "To be blabbermouthed": This is the standard adjectival phrase to describe someone's character trait.
  • The agent was dismissed for being blabbermouthed.
• Used attributively (before a noun) to modify and characterize a person.
  • We need to avoid blabbermouthed individuals for this confidential committee.

Variants and Related Words

• Blabber (verb/noun): To talk foolishly or indiscreetly; the act of such talk or a person who does it.
  • He tends to blabber when he's nervous.
• Blabbermouth (noun): A person who talks too much, especially one who reveals secrets.
  • He's such a blabbermouth; I can't trust him with anything.
• Loose-lipped (adjective): Similar in meaning, indicating a tendency to talk carelessly.

Synonyms

• Indiscreet: Not having or showing good judgment in speech; revealing things that should be secret.
• Garrulous: Excessively talkative, especially on trivial matters.
• Talkative: Fond of or given to talking.
• Gossipy: Fond of or engaged in casual conversation about other people.

Antonyms

• Discreet: Careful and prudent in one's speech or actions, especially to avoid causing offense or to gain an advantage.
• Taciturn: Reserved or uncommunicative in speech; saying little.
• Reticent: Not revealing one's thoughts or feelings readily.

Related Idioms and Phrases

• To have a big mouth: An informal idiom meaning to be prone to talking too much or revealing secrets.
  • He has such a big mouth; the surprise party is ruined.
• To spill the beans: To reveal a secret, often unintentionally.
  • She accidentally spilled the beans about the merger.

Adjective

1. prone to communicate confidential information
2. unwisely talking too much