coolheaded ['ku:l'hedid]

英汉解释

adj. 头脑冷静的；沉着的

同义词

a. cool，nerveless

参考例句

1. A life-or-death situation can reveal whether somebody is panicky or coolheaded, whether the person is selfish or thinks about others. This also is true for a nation-state.
生死关头的表现展示一个人是惊惶还是沉着，自私还是有爱心，同理，对一个国野也是一样。

英英解释

adj.
  1. marked by calm self-control (especially in trying circumstances); unemotional