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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 cretaceous flirtatious audacious salacious vivacious efficacious ignatius argillaceous rapacious capacious athanasius curvaceous fallacious crustaceous sagacious herbaceous ungracious perspicacious pugnacious loquacious carbonaceous mendacious disputatious coriaceous sebaceous veracious