Second-rates is a derogatory word used to express disappointment or disapproval of something that is considered inferior or of low quality. Thankfully, the English language offers many synonyms for this term. Some of these synonyms include mediocre, subpar, second-class, inferior, low-grade, average, common, and middle-of-the-road. Other synonyms for second-rates include passable, adequate, tolerable, and satisfactory. While it is important to use precise language when describing something, it is also important to choose words carefully in order to avoid being offensive or hurtful towards others. Using these alternatives to second-rates can help communicate dissatisfaction in a more respectful and appropriate way.