There are many words that can be used as synonyms for "were sad". Some examples include "dejected", "gloomy", "downcast", "melancholy", "heartbroken", "sorrowful", "miserable", "downhearted", "disheartened", and "crestfallen". Each of these words has its own nuance and connotation, and some may be more appropriate depending on the context. For instance, "melancholy" suggests a long-standing sadness, while "disheartened" may imply a sense of hopelessness or disappointment. Choosing the right synonym can help to add depth and emotion to a piece of writing, conveying the exact feeling that the writer intends.