(of a person) ready and willing to talk and give information

informative

(of a person) able to speak easily and without hesitating

articulate

talking too much about unimportant things

talkative

(of a person, what is said or how it is said) eager and fluent but not sincere

slick, smooth-talking

no longer needed (especially a person being made unemployed); no longer or not used or useful

excessive; repetitious

fond of talking

excessively communicative

using, containing, more words than are needed

wordy, long-winded

talking very quickly and easily

talkative