- mediocre, poor, second-rate - moderate to inferior in quality; "they improved the quality from mediocre to above average"; "he would make a poor spy"
Antonym: superior (indirect, via inferior)
- average, fair, mediocre, middling - of no exceptional quality or ability; "a novel of average merit"; "only a fair performance of the sonata"; "in fair health"; "the caliber of the students has gone from mediocre to above average"; "the performance was middling at best"
Antonym: extraordinary (indirect, via ordinary)
- mediocre - poor to middling in quality; "there have been good and mediocre and bad artists"
Antonym: good (indirect, via bad)