a.

1. 方便的；有利的；权宜的
   I thought it expedient to tell her about it.

   我认为将此事告诉她为好。

2. 出于便利的；出于私利的

n.

1. 紧急措施；权宜之计[C]
   Income controls were used only as a short-term expedient.

   采用控制收入的办法只是作为一时的权宜之计。

adj.

1. convenient and practical although possibly improper or immoral.
2. suitable or appropriate.

n.