The antonyms for the word "un-proven" are "proven", "verified", "established", "confirmed", and "demonstrated". These terms suggest that something has undergone testing, investigation, or observation and has been found to be reliable, accurate, or effective. In the context of scientific research, a proven theory or hypothesis is one that has been rigorously tested and supported by empirical evidence. Similarly, a verified claim or statement is one that has been backed up by credible sources and can be considered trustworthy. By contrast, an unproven assertion or belief may be based on speculation, hearsay, or unfounded assumptions.