Final answer:
The term for someone outside the caste system due to their low social status is an 'Untouchable' or 'Dalit'. This is a social issue particularly within Hindu culture in India.
Step-by-step explanation:
The term for someone so lowly that they exist outside of the caste system is an Untouchable or Dalit. The caste system is a key facet of certain societies, particularly in Hindu culture in India. This hierarchical order determines a person's social status, job, and even marriage partners. Untouchables or Dalits represent the very bottom of this hierarchy, to such an extent that they are often excluded entirely from it. Discrimination against these individuals is unfortunately common, though efforts have been made to improve their conditions.
Learn more about Untouchables/Dalits