Antonyms of adj no-good

2 senses of no-good

Sense 1
good-for-nothing, good-for-naught, meritless, no-account, no-count, no-good, sorry -- (without merit; "a sorry horse"; "a sorry excuse"; "a lazy no-count, good-for-nothing goldbrick"; "the car was a no-good piece of junk")

INDIRECT (VIA worthless) -> valuable -- (having great material or monetary value especially for use or exchange; "a valuable diamond")

Sense 2
rubber, no-good -- (returned for lack of funds; "a rubber check"; "a no-good check")

INDIRECT (VIA bad) -> good -- (having desirable or positive qualities especially those suitable for a thing specified; "good news from the hospital"; "a good report card"; "when she was good she was very very good"; "a good knife is one good for cutting"; "this stump will make a good picnic table"; "a good check"; "a good joke"; "a good exterior paint"; "a good secretary"; "a good dress for the office")

Similarity of adj no-good

2 senses of no-good

Sense 1
good-for-nothing, good-for-naught, meritless, no-account, no-count, no-good, sorry -- (without merit; "a sorry horse"; "a sorry excuse"; "a lazy no-count, good-for-nothing goldbrick"; "the car was a no-good piece of junk")
       => worthless (vs. valuable) -- (lacking in usefulness or value; "a worthless idler")

Sense 2
rubber, no-good -- (returned for lack of funds; "a rubber check"; "a no-good check")
       => bad (vs. good) -- (having undesirable or negative qualities; "a bad report card"; "his sloppy appearance made a bad impression"; "a bad little boy"; "clothes in bad shape"; "a bad cut"; "bad luck"; "the news was very bad"; "the reviews were bad"; "the pay is bad"; "it was a bad light for reading"; "the movie was a bad choice")