The antonyms for the word "more uninvestigated" can be categorized into two types: Investigated and Less. Investigated antonyms suggest a thorough examination or inquiry on the subject while less antonyms imply reduction or decrease in the quantity or intensity of uninvestigated matter. Some examples of investigated antonyms for "more uninvestigated" are scrutinized, researched, explored, examined, and probed. Conversely, less antonyms include minimal, lesser, fewer, reduced, scant, and limited. In summary, a few antonyms for "more uninvestigated" are scrutinized, researched, explored, examined, probed, minimal, lesser, fewer, reduced, scant, and limited.