inefficient

形容词 inefficient:

1. not producing desired results; wasteful
2. lacking the ability or skill to perform effectively; inadequate
   同义词：ineffective

1. He is inefficient and must be replaced.
   他不称职，必须撤换。
2. The government refuses to prop up inefficient industries.
   政府拒绝补贴效益不佳的行业。
3. The new boss was the scourge of the inefficient.
   新老板来了以後，不称职的人就遭殃了。
4. He's hopelessly inefficient, but I suppose he means well.
   他低能得无以复加，然而却是出於好心。
5. The quality, condition, or fact of being inefficient.
   无效率具有效率低的性质，处于无效率的状态或无效率的事实