The term "overspeak" can be defined as talking too much or saying things that are not necessary. There are several synonyms for this term including "ramble," "babble," "chatter," and "prattle." When a person overspeaks, they may be perceived as being long-winded or not getting to the point. Other synonyms include "jabber," "gab," "blabber," and "yak." While it's important to communicate effectively, overspeaking can have negative consequences, such as causing boredom or confusion. Therefore, it's essential to find a balance between conveying the necessary information and being concise in your speech.