adjective. causing a dispersion or movement away from the center; -- used especially of power or administrative functions. Opposite of centralizing.

verb. Present participle of decentralize.

adjective. tending away from a central point

"Even within the old, dense cities, population and jobs are decentralizing from the high-density cores to the lower-density suburbs, where cars prevail."

centrifugal  

centralizing  

decentralize