If a thought, fear, or choice is irrational, it is not built on clear thinking. The feeling may be strong, but the reasons do not hold — or there are no real reasons, only a jump.

If a thought, fear, or choice如果一個想法、恐懼或選擇 is irrational不理性，it is not built on clear thinking就代表它不是建立在清楚的思考上。The feeling這種感覺 may be strong可能很強烈，but the reasons但理由 do not hold卻站不住腳——or there are no real reasons或根本沒有真正的理由，only a jump只是一個沒道理的跳躍。

A fear of a tiny harmless spider can be irrational: you know, if you stop, that it cannot hurt you, but the fear still runs.

A fear of a tiny harmless spider對一隻無害小蜘蛛的恐懼 can be irrational可能就是不理性的：you know你明知道，if you stop如果你停下來想，that it cannot hurt you它根本傷不了你，but the fear still runs但那份恐懼還是揮之不去。

People also call a sudden spend, or a sudden blame, irrational when it does not follow from the facts. The word is a little formal. In speech people often say “that doesn’t make sense” or “I wasn’t thinking straight.” It is not the same as stupid.

People人們 also call也會把 a sudden spend, or a sudden blame一次突然的花費、或一次突然的責怪 irrational叫做irrational（不理性），when it does not follow from the facts如果它不是照事實走的話。The word這個字 is a little formal有一點正式。In speech在口語裡 people often say人常會說"that doesn't make sense"這樣講不通 or"I wasn't thinking straight."我剛剛沒想清楚 It is not the same as stupid它跟stupid（笨）不一樣。

An irrational moment can happen to a careful person. You can call a fear irrational, a decision irrational, or, more sharply, a person irrational in that moment.

An irrational moment不理性的一刻 can happen to也可能發生在 a careful person一個很謹慎的人身上。You can call你可以說 a fear irrational一個恐懼是irrational的，a decision irrational一個決定是irrational的，or, more sharply或者更直接地，a person irrational in that moment說一個人在那一刻是irrational的。