calm and composed; unflustered and confident, as if having more than enough time or resources.
試験開始のベルが鳴っても、彼は余裕綽々でまず深呼吸した。
Even when the exam bell rang, he calmly took a deep breath with composure.
面接での質問にも余裕綽々に答えていた。
He answered the interview questions with calm confidence.
あのチームは実力差があっても試合中ずっと余裕綽々だった。
That team remained composed throughout the match, despite the difference in ability.