Briefnesses refer to the quality or state of being brief or concise. Synonyms for the word briefnesses include succinctness, brevity, terseness, conciseness, and pithiness. These synonyms all reflect the idea of being short and to the point, conveying a message or idea in a clear and straightforward manner. They are often used in both written and spoken communication to convey information in a concise and effective manner. Whether you are a writer, speaker, or communicator in general, the use of these synonyms can help you to convey your message more efficiently and effectively, making you an effective communicator.