practicable

There's no practicable [=feasible] way to do the experiment with the current technology.用目前的技术做这项实验尚不可行。

The idea is interesting but not practicable, I'm afraid.这个想法固然有趣，但恐怕不可行。

Someday it may be practicable [=possible] to efficiently use waste as fuel.将来，高效利用垃圾作燃料也许是可行的。