bigmouthed

6.8

A person who talks too much and tells other people's secrets

adjective
/ˈbɪɡˌmaʊθd/

Offensive

: bocón

You can't trust a bigmouthed colleague with confidential information.

Examples

My bigmouthed cousin told everyone about the surprise party, so it wasn't a secret for long.
He's so bigmouthed that he blurted out the news before anyone else had a chance.
Don't be so bigmouthed about the surprise party!
She is always bigmouthed about other people's business.
His bigmouthed comments about the company's plans got him in trouble with management.
If you keep being so bigmouthed, people will stop telling you their secrets.
I can't believe she was bigmouthed enough to share my personal story at the meeting.

Synonyms

talkative

vsbigmouthed

33 2.5

A person who likes to speak a lot with other people

adds the idea of failing to keep secrets or being tactless

gossipy

vsbigmouthed

Informal

9 4.8

Liking to talk about other people's private lives

focuses more on indiscretion and revealing secrets rather than gossiping

leaky

vsbigmouthed

4 6.4

Likely to let secret information become known to others

is similar but includes deliberate indiscreet talk as well

garrulous

vsbigmouthed

Formal

3 8.6

Talking too much about small unimportant things

differs by stressing indiscretion and revealing secrets rather than triviality

mouthy

vsbigmouthed

Informal

3 6.9

Talking a lot in a lively or outspoken way

emphasizes revealing secrets and tactlessness rather than lively outspokenness

blabby

vsbigmouthed

Offensive

1 8.2

Talking too much and telling other people's secrets

covers that lack of discretion but can also mean general tattling

blabbermouthed

vsbigmouthed

Offensive

8.8

A person who talks too much and tells secrets

has the same fault but is used more broadly in informal speech

gobby

vsbigmouthed

9.9

A person who talks a lot in a loud, rude way

is less about loudness and more about indiscreet or tactless speech

overtalkative

vsbigmouthed

6.0

Talking much more than others want to hear

includes that excess but adds a tendency to reveal sensitive information

talky-talky

vsbigmouthed

Informal

9.6

Full of long conversations that feel boring

is instead about tactless disclosure and inability to keep secrets

Antonyms

discreet

115 5.8

Careful about what you say and do to avoid upsetting people or drawing attention

tactful

11 4.0

Being careful and polite when speaking to avoid hurting people

reserved

3.7

Not willing to show feelings or talk much

How Talkative

blabbermouthed

Offensive

8.8

bigmouthed

Offensive

6.8

gossipy

Informal

9 4.8

talkative

33 2.5

chatty

Informal

36 3.3

Surface Forms

bigmouthed positive

Morphology

bigmouthed = bigmouth (transparent) = big + mouth + ed

Formed by adding the adjectival suffix '-ed' to the noun 'bigmouth' so the meaning 'having the quality of a bigmouth (talks too much)' is directly inferable.

Etymology

Bigmouthed comes from joining big and mouth, like the phrase 'big mouth' for someone who talks too much. Think of words falling out of a very large mouth, and that image shows why a bigmouthed person cannot keep a secret.