coolheaded
['ku:l'hedid]
adj. 头脑冷静的；沉着的
同义词
参考例子
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。
英文解释
adj.
1.marked by calm self-control (especially in trying circumstances); unemotional