adj.不合理的，不合逻辑的，没有道理的
n.无理数，无理性的生物

原形：irrational复数：irrationals

Eric's decision seems quite irrational.
埃里克的决定似乎是很不明智的。
Tom had an irrational belief that everybody was his enemy.
汤姆有个荒谬的信念，以为人人都是他的仇敌。
Tony's parents were worried by his increasingly irrational behaviour.
托尼的父母因他的行为越来越乖僻而担忧。
The belief that every event has a specific purpose is irrational.
认为每件事都有特定目的的想法是不理智的。
His fear of spiders is completely irrational; they've never harmed him.
他对蜘蛛的恐惧完全是非理性的；蜘蛛从未伤害过他。
The notion that the earth is flat was once widely accepted but is now considered irrational.
地球是平的这一观念曾被广泛接受，但现在被认为是不合理的。
Her decision to quit her well-paying job on a whim seemed irrational to her friends.
她一时冲动决定辞去高薪工作，在朋友们看来是不理智的。
Investing all your savings in a single stock is often seen as an irrational financial move.
将所有积蓄投资于一只股票通常被视为不理智的财务举动。
The idea that success can be achieved without any effort is utterly irrational.
认为无需任何努力就能成功的想法是极其不理智的。
His irrational jealousy led to frequent arguments with his partner.
他那不理智的嫉妒导致了与伴侣频繁的争吵。
It's irrational to assume that everyone who disagrees with you is your enemy.
认为每个与你意见不合的人都是你的敌人是不合逻辑的。
The belief in supernatural beings stems from irrational fears and misunderstandings of natural phenomena.
对超自然生物的信仰源自对自然现象的非理性恐惧和误解。
His spending habits were so irrational that he often found himself in debt.
他的消费习惯非常不合理，以至于经常发现自己负债累累。