The term "more sophistical" refers to something that involves intricate and complex reasoning, often leading to misunderstandings or deception. To describe the opposite, we can use antonyms such as straightforward, simple, honest, and sincere. These terms suggest a clear and direct way of thinking or communicating, without the use of unnecessary complexity or excessive argumentation. Other antonyms for "more sophistical" might include transparent, easy-to-understand, uncomplicated or plain. Each of these terms captures the idea of simplicity and clarity, which can help to avoid confusion and misinterpretation. By focusing on such antonyms, we can develop a broader understanding of language and communication.