- chatty, gabby, garrulous, loquacious, talkative, talky - full of trivial conversation; "kept from her housework by gabby neighbors"
Antonym: taciturn (indirect, via voluble)
- bigmouthed, blabbermouthed, blabby, talkative - unwisely talking too much
Antonym: discreet (indirect, via indiscreet)
- expansive, talkative - friendly and open and willing to talk; "wine made the guest expansive"
Antonyms: uncommunicative, incommunicative (indirect, via communicative)