There have been some characters whose abilities were more known but these abilities were never shown in the Anime. The true potential of some shinobi is still unknown. Today at TheAnimeScrolls let us look at the top seven characters who never reached their full potential.
7. Itachi Uchiha
Itachi Uchiha was considered to be a genius from Uchiha clan of Konohagakure. He joined the ANBU just at the age of 11. He then awakened his Mangekyou Sharingan which gave him the ability of Amaterasu in one eye and Tsukuyomi, the most torturing Genjutsu in the other eye. At the time of his death, he even summoned a complete body Susanoo. I think his true potential wqs never fulfilled.