grittiest

adjective
  1. containing or covered with the most grit or small particles of sand or stone
  2. Usage: superlative form of gritty
  3. showing the most courage and determination despite difficulties
  4. Usage: superlative form of gritty; informal
  5. most realistic and uncompromising in depicting harsh or unpleasant aspects of life
  6. Usage: superlative form of gritty; often used to describe films, books, or art

Examples