asocial vs. antisocial : difference?

an·ti·so·cial adj. 1. Shunning the society of others; not sociable. 2. Hostile to or disruptive of the established social order; marked by or engaging in behavior that violates accepted mores:  3. Antagonistic toward or disrespectful of others; rude. a·so·cial

1. Not social: 

2. Avoiding or averse to the society of others; not sociable:

3. Unable or unwilling to conform to normal standards of social behavior; antisocial: 

4. Inconsiderate of others; self-centered.

I don't really know why I was thinking about this. But I was just wondering. Perhaps it's because I've been wondering about myself and how much I seem to a.dore to dance between these two and sociality. The line between introversion and full sociability seems never touched because I just leap from one polar to the other. Oh well, something to think about I guess.