producing or capable of producing an intended result or having a striking effect; an air-cooled motor was more effective than a witchs broomstick for rapid long-distance transportation-LewisMumford; effective teaching methods; effective steps toward peace; made an effective entrance; his complaint proved to be effectual in bringing action; an efficacious law

[ Syn: effective , efficacious ]

having legal efficacy or force; a sound title to the property

[ Syn: legal , sound ]