Racist is a direct word. It calls out reality in communities, institutions and people. It is not an easy word to use, as it elicits defense and denial. It is often proceeded by the words "I'm not" and the word "but" often follows. Racist is a noun referring to a person or people. It is also an adjective that modifies behavior. The racist person will often deny the racist behavior, which is itself racist. The behavior may also be modified by the adjectives subtle or blatant.