gabby
Definitions
Inclined to talk a great deal; talkative.
Characterized by excessive or trivial conversation.
Examples
My aunt is quite gabby and can talk for hours about her garden.
The gabby passenger sitting next to me wouldn't stop sharing stories about his life.
Synonyms
talkative chatty loquacious voluble garrulous verbose communicative
Antonyms
quiet taciturn reticent reserved silent laconic tight-lipped