Blabby is a synonym of talkative.
As adjectives the difference between talkative and blabby
is that talkative is tending to talk a lot while blabby is tending to blab or gossip a lot.
talkative
English
Adjective
(
en adjective)
Tending to talk a lot.
Speaking openly and honestly, neglecting privacy and consequences.
Synonyms
* chatty, gabby, garrulous, loquacious, outgoing, talksome
* long-winded, logorrheic, verbose
* indiscreet, outspoken
* See also
Antonyms
* dour, monosyllabic, sullen, withdrawn
* laconic, taciturn, terse, uncommunicative
* mute, quiet, silent
Derived terms
* talkativeness
blabby
English
Adjective
(er)
Tending to blab or gossip a lot.
Synonyms
* talkative
* chatty