Excommunication or Takfir, and Its Different Types in Shia Viewpoint

There are some notions in Shia narrations and sayings of its jurisprudents that apparently convey the disbelief of the Sunnis and those against the imamate of the Imams. But in a more careful reading of these contents we can understand that disbelief in these contexts does not mean that the Sunnis are not Muslims; it is a concept contrary to faith. Except for the Nasebis, those who curse the Imams, Moharbeen, those who kill Shiites and Moanedeen, those who stand against and fight the Imams, the rest of the Sunnis are part of Muslims but they are not faithful ones and all but the oppressed ones will be punished on The Last Day. There is no disagreement among the early and later scholars regarding this understanding; there is only difference in naming and wording.