My personal opinion, and the view of quite a few other people with depression, is that “depressed” and “depressing” should only be used to describe people who experience depression. Depression is deeper than just sadness or being upset; it can be sadness mixed with anger and grief and self-loathing and a lot of other emotions, which is exhausting, or it can be a lack of emotion, which is just as exhausting. I personally don’t like it when people without depression use the words “depressed” or “depressing” because I feel like they’re oversimplifying depression by using it as a synonym for being upset or sad when in reality it’s so much more, and that oversimplification is what leads to people like me being told “Stop being so negative” or “You’re just doing this for attention” or “You’re being so selfish”. I hope this helps.
~Mod cal92