1 babbling, chattering, chatty, effusive, gabby (informal) glib, gossiping, gushing, loquacious, mouthy, prating, prattling, talkative, verbose, voluble
2 diffuse, gassy (slang) long-winded, prolix, prosy, verbose, windy, wordy
Antonyms
concise, reserved, reticent, succinct, taciturn, terse, tight-lipped, uncommunicative