Synonyms: impelling
Definition: markedly effective as if by emotional pressure
Usage: impelling skill as a teller of tales; an impelling personality
Similar words: effective, effectual, efficacious
Definition: producing or capable of producing an intended result or having a striking effect
Usage: an air-cooled motor was more effective than a witch's 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