effective

"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";

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

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

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

"the fort was held by about 100 effective soldiers";

"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";