That cannot be overcome or defeated.
A piece of faeces that floats.
Of a ship: that cannot be sunk.
Not able to be defeated or bested.
Not able to be touched.
A criminal who is so well-connected that they cannot be harmed.
Synonym of outcast: a person excluded from society.
A law enforcement agent immune to intimidation, bribery, or seduction.
A member of the lowest and most despised caste in traditional Indian society.