effective
/ɪ'fek.tɪv/
adjective
SUCCESSFUL 成功的
E
* successful or achieving the results that you want
能产生预期结果的；有效的

1. It's an extremely effective cure for a headache.
这种药物治疗头痛极其有效。

2. The lighting for the production made a very effective use of shadow.
该戏剧的舞台灯光设计巧妙地运用了阴影效果。

3. She's a very effective teacher.
她课上得不错。
Opposite ineffective

/ɪ'fek.tɪv/
adjective
IN FACT 事实上的
[before noun]
* in fact, although not officially
实际上的；事实上的

1. Although she's not officially our boss, she's in effective control of the office.
她虽然名义上不是我们的老板，但实际上掌管着该办事处。

/ɪ'fek.tɪv/
adjective
IN USE 生效，有效
* If a law or rule becomes effective, it starts to be used
（法律法规）生效的

1. The new laws will become effective next month.
新法律将在下月正式生效。

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effective ★★★★☆

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☞ effective
ef·fect·ive / i5fektiv / adjective1. producing the result that is wanted or intended; producing a successful result
   产生预期结果的；有效的:
   Long prison sentences can be a very effective deterrent for offenders.
   判处长期徒刑可对违法者起到强有力的威慑作用。
   Aspirin is a simple but highly effective treatment.
   阿司匹林药片治疗方法简便,效果却非常显着。
   drugs that are effective against cancer
   治疗癌症的有效药物
   I admire the effective use of colour in her paintings.
   我很欣赏她绘画作品中的色彩效果。
   OPP  ineffective
⇨ see also cost-effective
2. [only before noun] in reality, although not officially intended
   实际的；事实上的:
   the effective, if not the actual, leader of the party
   虽未居其位却实际上是党的领导人
   He has now taken effective control of the country.
   他目前已有效地控制了这个国家。
3. (formal) (of laws and rules 法律和规则) coming into use
   生效的；起作用的:
   The new speed limit on this road becomes effective from 1 June.
   这条路上新的限速规定自 6 月 1 日起生效。
• ef·fect·ive·ness (also less frequent ef·fect·iv·ity / i7fek5tiviti / ) noun [U] :
   to check the effectiveness of the security system
   检查安全系统的有效性

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effective adj.

1. producing the result you want

• VERBS be, look, prove, seem | make sth | find sth We find advertising on the radio very ~.

• ADVERB extremely, fairly, very, etc. | enormously, especially, extraordinarily, highly, incredibly, remarkably, tremendously a highly ~ technique | completely, fully, totally, truly | especially, particularly | moderately, partially, reasonably | equally | generally The drug is generally ~ in reducing pain. | increasingly | surprisingly | consistently | enough This method is ~ enough with greenfly. | not sufficiently | immediately | potentially | devastatingly, powerfully Sneezes are devastatingly ~ at spreading infection. | politically What makes a speech politically ~?

• PREPOSITION at ~ at keeping out the wind | in ~ in helping people to stop smoking

2. of laws/rules

• VERBS be | become | remain

• ADVERB fully | partially | directly, immediately directly ~ treaty provisions | legally

Effective is used with these nouns: action, administration, advocate, agent, aid, alternative, answer, antibiotic, antidote, barrier, birth control, blockade, camouflage, campaign, campaigner, challenge, change, channel, collaboration, communication, contraception, contraceptive, control, cooperation, coordination, counter, counter-attack, critique, cure, date, defence, delegation, deployment, deterrent, diplomacy, discipline, drug, enforcement, engagement, execution, exercise, exploitation, expression, implementation, instrument, intervention, leader, leadership, learning, legislation, liaison, management, marketing, means, measure, mechanism, method, mode, monopoly, operation, opposition, organization, participation, partnership, piece, ploy, policy, presentation, protection, reform, remedy, removal, representation, resistance, resolution, response, ruler, safeguard, sanction, solution, strategy, supervision, system, teaching, teamwork, technique, tool, treatment, use, vaccine, veto, way, weapon, writing

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effective adj.
⇨ successful 1

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effective

adjective
1 there is no effective treatment for this condition
SUCCESSFUL , effectual, efficacious, productive, constructive, fruitful, functional, potent, powerful; worthwhile, helpful, of help, of assistance, beneficial, advantageous, valuable, useful, of use.
-opposite(s): INEFFECTIVE ; INCOMPETENT ; WEAK.

2 a more effective argument can be constructed in support of the opposite point of view
CONVINCING , compelling, strong, forceful, forcible, powerful, potent, weighty, plausible, efficacious, sound, valid, well founded, telling; impressive, persuasive, irresistible, credible, influential, conclusive, unanswerable, authoritative;
LOGICAL , reasoned, reasonable, well reasoned, rational, lucid, coherent, cogent, eloquent, well organized, systematic, orderly, methodical, clear, articulate, consistent, relevant.
-opposite(s): WEAK.

3 the new law will become effective three months from now
OPERATIVE , in force, in effect, in operation, valid, official, signed and sealed; lawful, legal, licit, legitimate, legally binding, binding, effectual, contractual.
-opposite(s): INVALID.

4 Korea was then under effective Japanese control
VIRTUAL , practical, essential, operative, actual, implied, implicit, unacknowledged, tacit.
-opposite(s): THEORETICAL.

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