clear-headed汉语翻译：
a. 头脑清楚的词型变化：
名词:clear-headedness副词:clear-headedly英语解释：
形容词 clear-headed:

not mentally confused; able to think clearly and act intelligently同义词：clearheaded, clear-thinking

详细解释：
clear-head.ed
adj.（形容词）
Having a clear, orderly mind; sensible.
头脑清楚，明事理的；敏锐的
【引伸】
clear.-head.edly
adv.（副词）
clear.-head.edness
n.（名词）

headed