1. (说法)未经证实的，无确证的
    An uncorroborated statement or claim is not supported by any evidence or information.

    e.g. Uncorroborated confessions should no longer be accepted by courts.
           没有证据证实的供词不应再被法庭采用。

adj

1. unsupported by other evidence

    Synonym: unsubstantiated