Antonyms of adj rough-and-ready

1 sense of rough-and-ready

Sense 1
rough-and-ready -- (crude but effective for the purpose at hand)

INDIRECT (VIA effective) -> ineffective, uneffective, ineffectual -- (not producing an intended effect; "an ineffective teacher"; "ineffective legislation")

Similarity of adj rough-and-ready

1 sense of rough-and-ready

Sense 1
rough-and-ready -- (crude but effective for the purpose at hand)
       => effective (vs. ineffective), effectual, efficacious -- (producing or capable of producing an intended result or having a striking effect; "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")