admonisher

/ədˈmɑnɪʃər/
noun
  1. A person who warns or reprimands someone firmly but kindly.
    • As the team's admonisher, she reminded everyone to follow the rules.
    • He acted as an admonisher, cautioning his friends against risky behavior.
    • The coach was a gentle admonisher, always encouraging improvement.
Antonyms
What does "admonisher" mean? | whatsthatwordmean | whatsthatwordmean