effective的反义词是什么

1. 有效（力）的，生效的，起作用的，产生预期结果的
2. 实际的，事实上的
3. 有力的
4. 灵验的
5. 显眼的，给人深刻印象的
6. 被实施的
7. 【军】有战斗力的，精锐的
8. 【经】实质上的
9. 有实价的
10. 高效率的

1. 实际可作战的部队
2. 有生力量
3. 【军】现役兵额
4. 精兵
5. 部队，有生力量

1. producing or capable of producing an intended result or having a striking effect;

   "an air-cooled motor was more effective than a witch's broomstick for rapid long-distance transportation"
   "effective teaching methods"
   "effective steps toward peace"
   "made an effective entrance"
   "his complaint proved to be effectual in bringing action"
   "an efficacious law"
   

2. able to accomplish a purpose; functioning effectively;

   "people who will do nothing unless they get something out of it for themselves are often highly effective persons..."
   "effective personnel"
   "an efficient secretary"
   "the efficient cause of the revolution"
   

3. works well as a means or remedy;

   "an effective reprimand"
   "a lotion that is effective in cases of prickly heat"
   

4. exerting force or influence;

   "the law is effective immediately"
   "a warranty good for two years"
   "the law is already in effect (or in force)"
   

5. existing in fact; not theoretical; real;

   "a decline in the effective demand"
   "confused increased equipment and expenditure with the quantity of effective work done"
   

6. ready for service;

   "the fort was held by about 100 effective soldiers"
   

1.有效的;能产生预期效果的
Something that iseffective works well and produces the results that were intended.

e.g. The project looks at how we could be moreeffective in encouraging students to enter teacher training...
该项目着眼于我们如何能够更加有效地鼓励学生参与教师培训。
e.g. Simple antibiotics areeffective against this organism...
一般的抗生素能够有效对抗这种微生物。

2.实际的;事实上的
Effective means having a particular role or result in practice, though not officially or in theory.

e.g. They have hadeffective control of the area since the security forces left.
自从安全部队撤离后，他们实际上控制了该地区。
e.g. ...a restructuring that would have resulted in aneffective increase on one of their most popular excursion fares.
原本会使他们最热门的一条短途旅游线路的费用出现实质性上涨的调整

3.（法律、协议等）生效的，起作用的
When something such as a law or an agreement becomeseffective, it begins officially to apply or be valid.

e.g. The new rules will becomeeffective in the next few days.
新规定将在几天后生效。

1. These are effective measures.
   这些都是有效的措施。
2. The medicine is an effective cure for a headache.
   这药治头痛疗效很好。
3. Her brother is the king, but she is the effective ruler.
   她的兄弟是国王,但她才是实际的主宰者。
4. The book has a very effective closing chapter.
   这本书的结尾一章给人印象极深。

1. The law became effective last month.
   这条法律于上个月生效。
2. That display is very effective.
   那个展览使人赏心悦目。

1. The medicine is effective against cancer.
   这药物治癌有效。
2. The clothes are effective in keeping cool in warm weather.
   热天穿淡色衣服使人凉爽。

• be effective against有抗…效力的
• effective from从…生效

effective, effectual, efficacious, efficient

这四个形容词都有“(能够)生效”的含意。effective强调效用,意为“有效的”,可用于人或事物; effectual强调效果,意为“(最终)奏效的”,一般不用于人; efficacious强调效验,意为“灵验的”,不用于人,多表示药物和治疗的效果; efficient强调功效,意为“有成效的,效率高的”,可用于人或事,指人表示“能干的”,指方法、机器表示“收效大的”。

effective，efficient

这两个形容词很容易混淆。

effective表示有效用的。

efficient表示“效率高的”，可指人。