merciless

/ˈmɜrsɪləs/
adjective
  1. Showing no kindness, forgiveness, or pity; very harsh or cruel.
    • The merciless dictator punished anyone who disagreed with him.
    • The sun was merciless, beating down on the hikers all afternoon.
    • Her merciless criticism made the new employee feel terrible.
  2. Extremely intense or relentless, without any relief.
    • The team's merciless attack led to a 10–0 victory.
    • The merciless wind tore through the village, knocking down trees.
    • He faced merciless pressure to finish the project on time.
What does "merciless" mean? | whatsthatwordmean | whatsthatwordmean