Most blabbering is a phrase that describes someone who talks excessively and often without purpose or relevance. There are a variety of synonyms that can be used to describe such individuals. Some possible alternatives include: chatty, verbose, loquacious, garrulous, talkative, wordy, gabby, long-winded, rambling, prattling, babbling, and voluble. Each of these words conveys a similar meaning to most blabbering and can be used in different contexts depending on the situation. Whether you are describing someone who can't stop talking or trying to politely end a conversation with such a person, these synonyms can be useful to have in your vocabulary.