Volubility(noun)
(The quality of talking fluently, readily, or incessantly)
Hindi meaning:शब्द-बाहुल्य
Synonyms: Talkativeness, Loquaciousness, Garrulousness, Verboseness, Wordiness, Chattiness
Antonyms: Conciseness, Succinctness
Example: After drinking a few beers, he became voluble and talked nearly for 3 hours.
Trick to remember: Zyada volumne ho gya to voluble ho gya. 
