Mild-mannered (adjective)

Having a mild and gentle behavior and manners; meek, unassuming, and unassertive.

Origin:

Mild + mannered, refers to a person who has a mild and gentle behavior and manners.

Examples:

1. He was known for his mild-mannered and unassuming nature.
2. She is a mild-mannered teacher, who is well-liked by her students.
3. He was a mild-mannered businessman, who never raised his voice or got angry.
4. The mild-mannered detective found the criminal by using his intelligence.
5. He was a mild-mannered man, but he had a strong sense of justice and he fought for what he believed in.