The word 'secondrates' may have a negative connotation associated with it, which could make it quite difficult to use in certain situations. However, there are other words that could be used in place of 'secondrates' that may be more appropriate for conveying similar meanings. Some commonly used synonyms for 'secondrates' include subpar, mediocre, average, inferior, poor quality, and low-class. Each of these synonyms has its own nuances, and which word is chosen will depend on the desired emphasis. For example, if a product is generally good but has a flaw, the word 'subpar' could be an appropriate synonym. However, if something is consistently lacking in quality, the word 'inferior' may be more fitting.