mediocre

(s) moderate to inferior in quality
- they improved the quality from mediocre to above average
second-rate,
(s) lacking 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
middling, average, fair,
(s) poor to middling in quality
- there have been good and mediocre and bad artists

second-rate middling average fair