The antonyms of the word "most inapprehensible" are clear, understandable, plain, comprehensible, explicit, intelligible, apparent, evident, manifest, and transparent. These words define the opposite idea of the word "inapprehensible," which refers to something that is difficult or impossible to grasp mentally. On the other hand, the antonyms of most inapprehensible suggest something that is easily understood or recognizable. These words are commonly used in various fields, including education, language, and communication. Having a good knowledge of antonyms is essential in enhancing one's vocabulary and communication skills, which are vital in any profession.