unruffled
🇺🇸
/ʌnˈrʌfld/
🇬🇧
/ʌnˈrʌfld/
Not disturbed or worried by something; calm and composed.
Despite the chaos around him, John seemed completely unruffled.
尽管周围一片混乱,约翰似乎完全镇定自若。