effective
Pronunciation:
/əˈfɛktɪv/noun
Definitions
A soldier fit for duty
adjective
Definitions
Having the power to produce a required effect or effects.
Example: The pill is an effective method of birth control.
Synonyms:efficaciousProducing a decided or decisive effect.
Example: The president delivered an effective speech!
Efficient, serviceable, or operative, available for useful work.
Example: How long does it take to make a bunch of civilians an effective military force?
Actually in effect.
Example: The curfew is effective at midnight.