a.

1. 通情达理的，讲道理的
   Our mother was always very reasonable.

   我们的母亲总是非常通情达理。

2. 合理的，正当的；适当的
   The decision seemed reasonable and was agreed by both parties.

   这个决定似乎合理，两派人士都同意了。

3. （价钱）公道的，不贵的
   You can get the house for a reasonable price.

   你可以用公道的价格买到那间房子。

4. 有理智的，有理性的，明智的
   I don't think it's a reasonable judgement.

   我不觉得那是个理性的判断。

5. 尚好的，过得去的
   We have a reasonable chance of winning the game.

   我们比赛的胜算尚可。

adj.

1. fair and sensible.
2. archaic able to reason logically.
3. as much as is appropriate or fair; moderate.
   ▸fairly good.
   ▸relatively inexpensive.