cha·os (noun /ˈkāˌäs/) 
1.Complete disorder and confusion
2.Behavior so unpredictable as to appear random, owing to great sensitivity to small changes in conditions
3.The formless matter supposed to have existed before the creation of the universe

re·al·i·ty (noun /rēˈalətē/) 
1.The world or the state of things as they actually exist, as opposed to an idealistic or notional idea of them
2.A thing that is actually experienced or seen, esp. when this is grim or problematic
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7.Existence that is absolute, self-sufficient, or objective, and not subject to human decisions or conventions