1. 
   rewardful
   [adj] - offering or productive of reward
   Found op http://www.webdictionary.co.uk/definition.php?query=rewardful
   
   
2. 
   Rewardful
   Re·ward'ful adjective Yielding reward. [ R.]
   Found op http://www.encyclo.co.uk/webster/R/74
   
   
3. 
   rewardful
   adjective offering or productive of reward; `rewardful pursuits`
   Found op http://wordnetweb.princeton.edu/perl/webwn?s=rewardful
   
   
4. 
   Rewardful
   • (a.) Yielding reward.
   Found op http://thinkexist.com/dictionary/meaning/rewardful/
   
   
5. 
   rewardful
   1) Offering or productive of reward 2) Rewarding
   Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/rewardful/1
   
   

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