I'm going to go with the majority here and define 'emotionally stable' as being difficult to provoke into feeling, and when provoked, to outsiders appear to have little or no reaction to it.
This being said... I don't necessarily consider this to be emotionally 'healthy'. Supression of feelings can create all kinds of subconscious angst. So, while being seen as a 'stable' person might APPEAR to be a 'good' thing, I think an argument could be made in the opposite direction.
As an INTJ, I've often envied the ability in some to feel things so intensely and to be able to express those feelings with seeming disregard for how the world handles their outbursts. The fact that the envy exists implies that I actually DO have the same kinds of fluctuations in feeling... I go through the same roller coaster as someone more expressive... I just don't show it... and maybe don't even REALIZE it when its happening. Not recognizing what the feelings were is a big problem for 'non-expressive' types. I went through many years of physical problems because of all the stress of not recognizing emotions like anger, sadness or even happiness. On the outside, I was an even-tempered robot to most.
The old phrase 'still waters run deep' comes to mind here.
P.S. I vote for INTP's over INTJ's. The 'J' function typically denotes some action having to be taken, which would lend a more pro-active (or re-active?) energy to expressing things. The INTP's I know are rarely riled by anything. Only once have I seen an emotional outburst from an INTP... and it was REALLY bad.
What is the most stable type acording to you? (having the less high and down). Is this type dependent according to you?
And : I still didn't figure out how to put a poll into a thread... Can someone explain?
I get a little cranky when there is reason, and I usually deal with it. With force.
But I don't have many mood swings, and if there are any they are generally because of injustices. Despite my profile picture, I tend to behave more like good ol' Yoda.
Mightier than the tread of marching armies is the power of an idea whose time has come
hmm ISTxs are not emotionally stable are they? they are emotionally ignorant. they run away from their emotions. and from other people's emotions. this is not being emotionally stable, i think this is being emotionally scared.