Synonyms of blabbermouth in English:

blabbermouth


See US English definition of blabbermouth

See UK English definition of blabbermouth

See Spanish definition of bocazas

noun

1‘we can't let a blabbermouth loose with information like this’

SYNONYMS
talker, chatterer, jabberer, babbler, prattler, blatherer, prater
tittle-tattler, tattler, gossip, gossiper, gossipmonger
conversationalist
North American blatherskite
informal chatterbox, windbag, gasbag, gabber, big mouth, loudmouth
British informal natterer