producing or capable of producing an intended result or having a striking effect(adj.all)
Example: 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.
Having the power to produce an effect or effects; producing a decided or decisive effect; efficient; serviceable; operative; as, an effective force, remedy, speech; the effective men in a regiment.(adjective)
source: webster1913
noun (n)
That which produces a given effect; a cause.(noun)
source: webster1913
The serviceable soldiers in a country; an army or any military body, collectively; as, France's effective.(noun)
source: webster1913
adjective satellite (s)
able to accomplish a purpose; functioning effectively(adj.all)
Example: People who will do nothing unless they get something out of it for themselves are often highly effective persons....
Effective personnel.