The In Between Crisis

There's the teen angst phase, the quarter-life crisis, and the midlife crisis. But what about the crisis that comes between one's 20's and 40's....thirty-somethings who experience something of a cross between the two (ie, the 20something's feeling of not knowing what's in store for the future, yet the 40something's feeling that your life is starting to feel like a succession of boring moments and monotony)?

Is there a name for the thirty-something who experiences THIS kind of life stage crisis? Granted, we can't expect our lives to always be exploding with excitement....but when you can't remember the last time you felt even a modicum of adventure and crazy spontaneity, what does that reflect about your inner and outer life?

I remember reading something in grad school about how there are two Chinese characters for the word 'crisis,' one representing 'danger' and the other 'opportunity.' If we have a choice in how to respond when a 'crisis' presents itself in our lives, how do we embrace 'opportunity' in lieu of the unwanted alternative?