Gabbiness is a term used to describe someone who talks too much. Synonyms for this word include verbosity, loquaciousness, talkativeness, chattering, and garrulousness. A person who is verbose tends to use too many words, while loquaciousness refers to a tendency to talk excessively. Talkativeness describes someone who talks a lot and enjoys socializing, while chattering refers to meaningless or trivial talking. Finally, garrulousness suggests a habit of speaking too much or talking too freely about topics that may not be relevant. All these synonyms indicate a tendency towards excessive speaking, which can be tiring to listeners, especially when not engaging.