talkativeness vs loquacity

talkativeness and loquacity both are nouns.

Word	Noun	Adjective	Verb	Adverb
talkativeness	Yes	No	No	No
loquacity	Yes	No	No	No

As nouns, talkativeness and loquacity are synonyms defined as:

Other synonyms of talkativeness include garrulity, garrulousness, loquaciousness.

talkativeness (noun)	loquacity (noun)
the quality of being wordy and talkative	the quality of being wordy and talkative