efficient反义词

来源：爱玩科技网

efficient的反义词是：ineffective；useless。efficient的词语用法是。efficient的意思是adj.效率高的；胜任的。

adj.(形容词)

二、双解释义

adj.(形容词)

三、词典解释

1.效率高的;效能高的
If something or someone isefficient, they are able to do tasks successfully, without wasting time or energy.

e.g. With today's moreefficient contraception women can plan their families and careers.
如今有了更加有效的避孕方法，女性便可以规划她们的家庭和事业。

efficiently
I work very efficiently and am decisive, and accurate in my judgement.
我工作非常有效率，处事果断，而且判断准确。

四、例句

This is a highly efficient new heating system.

这是个高效的新取暖系统。

Consequently, we have been developing a more efficient engine.

结果,我们已经开发了一台更高性能的发动机。

The success of CAD systems is becoming more dependent on the efficient drafting.

cad系统的成功在很大程度上取决于草图的制图效率。

He's efficient at his job.

他胜任工作。

I'll say this for them--I'll admit that they're efficient.

我得为他们说句话——我会说他们很有能力。

五、词汇搭配

用作形容词 (adj.)

副词+～

～+介词

六、经典引文

He was an expert and efficient workman.
出自：H. B. Stowe
The appeal to sentiment was heartlessly efficient; it had struck him in the place where he was most vulnerable and at the hour when he was most alone.
出自：G. Greene

七、词语用法

efficient修饰人、事物、行为皆可，是“能胜任的”、“得力的”或“有效率的”的意思。
He's not very efficient:he works very slowly.
他不是很有效率，做的很慢。
efficient与effective，effectual和efficacious都不同：effective是“很有效的”意思，用于事物或人，一般是呈现出正确的结果或是解决了问题。effectual是“达到目的的”意思，不能用于人。efficacious是“必然有效的”意思，程度比effective轻，尤指药品。efficient是“有效率的”，可以用于人，事物和行为。

efficient的相关近义词

competent、effective、useful、able

efficient的相关反义词

ineffective、useless