プログレッシブ和英中辞典(第4版)の解説
きおう【気負う】
get worked up; work oneself up
彼は気負うこともなく淡々と話した
He talked quietly, without getting carried away.
人より上手に弾こうと気負うとかえって失敗する
If you try too hard to play better than everyone else, you'll only end up making mistakes.
そんなに気負うな
Take it easy./Don't get so excited.