deserved (esp. in reference to a punishment) adj.: condign

Those who had seen the Standard Oil dissolution as condign punishment for Rockefeller were in for a sad surprise: It proved to be the luckiest stroke of his career. (Ron Chernow, Titan, Random House [1998], p. 556.)

This word, when used in the above sense, can also be a synonym for fitting, merited or warranted.