1. 不公平的；不合理的
    If you say that someone is being unreasonable, you mean that they are behaving in a way that is not fair or sensible.

    e.g. The strikers were being unreasonable in their demands, having rejected the deal two weeks ago...
           罢工者的要求很不合理，他们在两周前已拒绝接受这份协议。
    e.g. It was her unreasonable behaviour with a Texan playboy which broke up her marriage...
           与一个得克萨斯的花花公子的不正当关系导致她的婚姻破裂。

2. 不合理的；不讲道理的
    An unreasonable decision, action, price, or amount seems unfair and difficult to justify.

    e.g. ...unreasonable increases in the price of petrol...
           汽油价格的疯涨
    e.g. One in four consumers now say water prices are very unreasonable.
           1/4的消费者认为现在的水费很不合理。