irrational 

  1. 形容詞
無理性的, 不合理的
荒謬的
(數理)無理的

    同義字詞
fallacious,illegitimate,illogical,inconsequent,inconsequential,invalid,nonrational,unreasonable,unreasoning,unsound,weak

例句

  1. It's irrational to believe they don't.
  2. It is, of course, messy and irrational .
  3. He's irrational and out of control and can't win.
  4. The brief, irrational mental jolts quickly followed.
  5. And with Irrational Games at the helm, "wow" it does.