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1.
1. The quality or state of being perverse.
2. An instance of being perverse.
Infused with perversity.
by blammord March 22, 2006
 
2.
American mis-spelling of perversion.
Perversity actually means "stubborn awkwardness".
I offered her a ride in my car, but she perversely decided to walk.
by OrangUtanUK June 18, 2003