The antonyms for "illustrates with" can vary depending on the context. However, some possible antonyms include obscures, confuses, obscures meaning, muddies the waters, and obfuscates. These antonyms suggest a lack of clarity or precision in communication, either intentionally or accidentally. Alternatively, synonyms for "illustrates with" could include clarifies, explains, demonstrates, exemplifies, or shows. These words suggest a clear and concise communication of ideas or concepts. It is important to choose words carefully when communicating messages to avoid confusion and ensure accurate interpretation.