bigmouth
Can't keep secrets
A bigmouth is someone who talks too much, especially revealing secrets or speaking boastfully.
The word implies indiscretion—a bigmouth can't keep confidences: Don't tell her anything; she's a bigmouth.
As an adjective, bigmouthed describes loud, indiscreet, or boastful behavior: his bigmouthed bragging.
One who flaunts achievements
- show-offOne who flaunts
- braggerOne who boasts
- swaggererBoastful, showy person
- grandstanderOne who seeks applause
egotist · windbag · self-promoter · exaggerator · blowhard · narcissist · cocky · boastful
One who informs on others
- snitchOne who tells authorities
- gossipmongerHabitual spreader of rumors
- rumormongerOne who spreads unverified talk
- talebearerOne who spreads rumors
chatterbox · busybody · yenta · meddler · scandalmonger · spiller · revealer · telltale
One who tells authorities
- ratRodent or informer
- finkContemptible informer
- squealerOne who betrays secrets
- narcUndercover drug officer
informer · tipster · whistleblower · leaker · canary · betrayer · stool pigeon · turncoat
Experiencing rapid growth
- bellowingLoud, deep shouting
- stentorianExtremely loud and resonant
- thunderousExtremely loud, resounding
- raucousLoud and disorderly
deafening · clamorous · strident · blaring · brash · obnoxious · disruptive · intrusive
braggart
One who flaunts achievements
grandstander · egotist · windbag · self-promoter · exaggerator · blowhard · narcissist · cocky · boastful · vainglorious
tattletale
One who informs on others
- snitchOne who tells authorities
- gossipmongerHabitual spreader of rumors
- rumormongerOne who spreads unverified talk
talebearer · chatterbox · busybody · yenta · meddler · scandalmonger · spiller · revealer · telltale · indiscreet
snitch
One who tells authorities
narc · informer · tipster · whistleblower · leaker · canary · betrayer · stool pigeon · turncoat · double-crosser
booming
Experiencing rapid growth
- bellowingLoud, deep shouting
- stentorianExtremely loud and resonant
- thunderousExtremely loud, resounding
raucous · deafening · clamorous · strident · blaring · brash · obnoxious · disruptive · intrusive · overbearing
- blabbermouthsgossipmonger, rumormonger, scandalmonger, talebearer, tattletale
- windbagswindbag, blowhard, gasbag, bloviator, pontificator
- compound slangairhead, birdbrain, blockhead, bonehead, dimwit
- showoffsshowoff, show-off, braggart, bragger, boaster
- criticscritic, critics, criticizer, criticizers, faultfinder
- troublemakerstroublemaker, rascals, delinquents, imps, brats
bigmouthtight-lipped
Unwilling to divulge
discreet · secretive · closemouthed · close-mouthed · confidant
bigmouthwallflower
Shy person avoiding socializing
shrinking violet · quiet type · introvert · mouse · listener