English dictionary



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English adjective: effective

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


SamplesAn 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.


Synonymseffectual, efficacious


Similarhard-hitting, impelling, impressive, rough-and-ready, telling, trenchant


See alsoefficacious, efficient, potent, powerful, stiff, strong, useful, utile


Attributeeffectiveness, effectivity, effectuality, effectualness


Antonymsineffective, ineffectual, uneffective

2. effective able to accomplish a purpose; functioning effectively


SamplesPeople 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.


Synonymsefficient


Similarcompetent


Antonymsincompetent

3. effective works well as a means or remedy


SamplesAn effective reprimand.
A lotion that is effective in cases of prickly heat.


Similarefficacious


Antonymsinefficacious

4. effective exerting force or influence


SamplesThe law is effective immediately.
A warranty good for two years.
The law is already in effect (or in force).


Synonymsgood, in effect, in force


Similaroperative


Antonymsinoperative

5. effective existing in fact; not theoretical; real


SamplesA decline in the effective demand.
Confused increased equipment and expenditure with the quantity of effective work done.


Similaractual, existent


Antonymspotential, possible

6. effective ready for service


SamplesThe fort was held by about 100 effective soldiers.


Similaroperational


Domain categoryarmed forces, armed services, military, military machine, war machine


Antonymsnonoperational, inactive









Based on WordNet 3.0 copyright © Princeton University.
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