effectual

1. Producing or capable of producing an intended result or having a striking effect (synset 300837737)
   "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"
   also:

   • efficacious - marked by qualities giving the power to produce an intended effect
   • efficient - being effective without wasting time or effort or expense
   • potent, stiff, strong - having a strong physiological or chemical effect
   • powerful - having great power or force or potency or effect
   • useful, utile - being of use or service
   tells us about: effectiveness, effectivity, effectuality, effectualness - power to be effective; the quality of being able to bring about an effect
   similar to:

   • hard-hitting, trenchant - characterized by or full of force and vigor
   • impelling - markedly effective as if by emotional pressure
   • impressive, telling - producing a strong effect
   • rough-and-ready - crude but effective for the purpose at hand
   same as: effective, efficacious
2. Having legal efficacy or force (synset 302508961)
   "a sound title to the property"
   similar to: valid - well grounded in logic or truth or having legal force
   same as: legal, sound

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