Rational decisions and thoughts are based on reason rather than on emotion.
例句
He's asking you to look at both sides of the case and come to a rational decision...他是要求你看到問題的兩面后再作出理性的決定。Mary was able to short-circuit her stress response by keeping her thoughts calm and rational.瑪麗能夠保持頭腦清醒理智，因而迅速做出反應。
ADJ-GRADED
理性的;理智的
A rational person is someone who is sensible and is able to make decisions based on intelligent thinking rather than on emotion.
例句
Did he come across as a sane rational person?...他看起來是一個正常而理智的人嗎？Rachel looked calmer and more rational now.雷切爾現(xiàn)在看上去更加平靜、更加理智了。
英漢詞典釋義
n.
合理性
We predicate rationality of man.我們斷言理性是人類的屬性。
英英詞典釋義
Noun
1. the state of having good sense and sound judgment;
"his rationality may have been impaired""he had to rely less on reason than on rousing their emotions"
2. the quality of being consistent with or based on logic