Avoidant Personality Disorder (AVPD) is one of the great myriad of psychological personality "disorders" that's basically characterized by extreme shyness, social isolation and tendency to solve everything by avoidance -- people with this thing have no friends, social life, they isolate, don't go out, don't go to [work](work.md) (that's good), they constantly think about how they're judged by others, may try to adjust personality according to what the other people around seem to want etc. It could possibly be seen as the hardcore [minimalist](minimalism.md) disease, AVPD positives just minimize their life to the a bare minimum of things they can't avoid, like eating, breathing etc. Of course this goes with anxiety, panic attacks and [depression](depression.md), sometimes self harm and so on.
