Unphilosophical is an adjective that describes a person or idea that lacks philosophical depth or insight. Some synonyms for unphilosophical include shallow, superficial, simplistic, naive, and shortsighted. Shallow describes a lack of intellectual depth, while superficial suggests a lack of thoroughness. Simplistic implies an oversimplified view of complex issues, while naive suggests a lack of experience and wisdom. Shortsighted refers to a narrow focus on short-term outcomes without considering long-term consequences. Using these synonyms can help to accurately describe a person or idea that fails to exhibit philosophical thought or intellectual depth in a more precise and nuanced way.