Of low or lower quality
There are greyhounds also, but inferior in speed to second-rate English dogs.
This was Dean's week for second-rate motels, and they weren't getting better.
Herodotus, owing to his religious awe and dread of divulging sacred mysteries, is only a second-rate source.
"Always be a first-rate version of yourself, instead of a second-rate version of somebody else."
You can be assured that you are giving a gift of good wine, not just a wine gift with some sub-par bottle of second-rate wine.