chatter 0 antonyms and opposites of chatter. Noun — Talk that goes on and on without saying much of substance. Synonyms for chatter babble bavardage bibble-babble blab blabber blabbing blather blathering chinwag chit-chat claver clepe gabble hot air mardle natter palaver prate prattle small talk scuttlebutt tattle twaddle yackety-yak waffle yap yatter ← Back to the full definition of chatter