a.

1. 可弯曲的，易弯曲的；柔韧的；有弹性的
   A piece of rubber hose is flexible.

   橡皮管可以弯曲。

2. 柔顺的，温顺的
3. 可变通的；灵活的；易适应的
   We need a foreign policy that is more flexible.

   我们需要更有弹性的外交政策。

adj.

1. capable of bending easily without breaking.
2. able to change readily to meet new circumstances.