Ambrose2007: That's a question which, as usual, begs for a definition.
One could argue that if "stability" is the main criterion, that a consistently depressed person was "mentally stable." I'm guessing you mean someone with a consistently upbeat attitude.
For myself, I would say that my dominant outlook is optimistic, and that I generally enjoy life - therefore, by that definition, I'm emotionally stable. However, since the last few years have been, arguably, the most tumultuous of my life, I'd qualify that by acknowledging that my moods are more variable than previously. I anticipate returning to my default in the near-future, however.
Also, there are worse things than being in something of a tumultuous emotional state.
I was hoping you would respond, simply because I know it will be interesting.
I am meaning Jeff, being emotionally stable, the same all the time. Not depressed, because that is different and you are the first along with Ken who has asked this.
A depressed person person can be stable, if their state of mind is permanently in one mode.
My mother for instance has lived a life of constant emotional turmoil, so she is unstable emotionally.
So it is not a person who is constanly upbeat, stable as in stable, not up and down and fluctuating between moods.
I am of the same mood all the time, when I wake up to when I go to sleep, I can have my unstable moments when it is my menstrual time, when I feel a tad down and want to curl up alone with a hot water bottle and a sloppy movie. Then I am unstable, but ont he whole my mood remains the same and my emotions are very clearly understood by those around me.