The antonyms for the word "inexpressibility" include expressibility, communicability, expressiveness, articulateness, eloquence, fluency, and lucidity. These words describe the ability to convey meaning effectively through speech, writing, or other means of communication. When someone possesses these qualities, they are able to communicate their thoughts, ideas, and emotions clearly and effectively, often inspiring others and making connections with them. In contrast, if someone lacks expressibility, they may struggle to communicate effectively, leading to frustration, misunderstandings, and a sense of disconnection from others. Thus, the antonyms of inexpressibility are important aspects of interpersonal communication and connection.