Moshiach (also known as messiah) is the long awaited Jewish leader who will usher in an era of world peace and G‑dly awareness.
The Jewish messiah is a human being, a descendant of King David, who will lead the Jewish people back to the Land of Israel, where they serve G‑d in peace, leading the nations of the world in attaining an understanding of the Creator.
Messiah will also rebuild the Holy Temple in Jerusalem, establishing an era of peace and prosperity that will endure forever. read more…
Why is Moshiach unique from other humans?
Because he will be the one who will usher the Messianic area, a unique and historic moment. You can read all about the unique qualities of Moshiach here.
Thanks. Is he like a super human or perfectly holy?
Neither — and in this, Jews are much more realistic than those expecting his descent from the clouds, or that he will arrive cloaked in robes and speaking in perfect pie-a-tease.