Being an old hand at the art of being depressed, I've devised my own ways of describing it.
For me, it isn't so much a matter of being sad all the time. Heck, given the right companionship or joke, I can laugh long and loud. But just because I'm laughing or joking doesn't mean I'm not depressed.
It's more as if a button has been pushed in, and then, uckily (stickily?) it won't come 'unpressed'. It's as if it's stuck in 'pressed-in' (de-pressed) mode.
It's a nasty one to deal with, as it has a way of interfering with almost everything I need or want to get done.
Where this is Mental Health Week, there's a drive on to help people determine whether they're depressed. If only to give yourself a free online check-up -- or to find out more info on behalf of someone you love, make a stop at Beyond the Blues. Heck, it might even make you feel happy.