Unconfirmed reports are pieces of information that have not been verified or authenticated. There are several synonyms that can be used in place of "unconfirmed reports," such as "unsubstantiated claims," "unverified rumors," "unauthenticated allegations," and "unproven assertions." These synonyms all suggest that the information in question lacks credibility, and caution should be exercised when considering it. It's important to recognize that while unconfirmed reports may contain elements of truth, they are not necessarily reliable sources of information. It's always best to seek out multiple sources and verify the information before accepting it as true or accurate.