The antonyms for the phrase "more good for nothing" would be words like valuable, useful, worthy, productive, beneficial, and advantageous. These antonyms describe things or actions that have a positive impact or benefit, compared to the uselessness and lack of value implied by the original phrase. By contrast, the antonyms reveal qualities that are sought after and appreciated, and that can contribute to a better outcome or situation. When we seek to enhance our lives or achieve our goals, we strive for things that are more valuable and beneficial, rather than more good for nothing.