mild mannered
/maɪld ˈmænərd/
adjective
- Having a gentle, calm, and unassuming personality; not easily angered or aggressive.
- Our mild-mannered neighbor never raises his voice, even when he is upset.
- She is a mild-mannered teacher who patiently explains every lesson.
- Clark Kent appears as a mild-mannered reporter, but he is secretly Superman.
Antonyms