Unplayable. (at least in the context of video games)
Okay, I talked briefly about this years ago, but I've come to dislike this word a lot more than I did then, and I want to go a bit more in-depth since I have more to say about it now.
This is one of those terms that gets used so loosely these days. I feel like it has lost its meaning over the years because of this. For instance, people will often describe a game, or something in a game, that's either very boring, difficult, frustrating, doesn't look good, or one that doesn't quite run at a desired framerate, as "unplayable", and even worse, I've seen people describe these things as "literally unplayable", when that really isn't the case. To me, if a game either refuses to even boot up when attempting to play it or if something in the game doesn't work at all and/or crashes immediately upon trying to use it, that is what I think of as unplayable. The way I look at it is, if you can do anything at all with it, then it's not unplayable.
I understand figure of speech is a thing, but I feel like this goes a bit beyond that, and it really strikes me as a term that has been used so loosely, it doesn't have much value anymore.