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"an efficacious law"adjectiveproducing or capable of producing an intended result or having a striking effect
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"written propaganda is less efficacious than the habits and prejudices...of the readers" "the medicine is efficacious in stopping a cough"adjectivemarked by qualities giving the power to produce an intended effect
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Words sounding like good efficacious
gracious spacious tenacious voracious flirtatious cretaceous audacious salacious vivacious ignatius efficacious argillaceous rapacious capacious fallacious curvaceous athanasius sagacious crustaceous ungracious herbaceous pugnacious perspicacious loquacious mendacious carbonaceous disputatious coriaceous sebaceous vexatious