Source : Webster's Revised Unabridged Dictionary (1913)

Praiseworthy \Praise"wor`thy\, a.
   Worthy of praise or applause; commendable; as, praiseworthy
   action; he was praiseworthy. --Arbuthnot.

Source : WordNet®

praiseworthy
     adj : worthy of high praise; "applaudable efforts to save the
           environment"; "a commendable sense of purpose";
           "laudable motives of improving housing conditions"; "a
           significant and praiseworthy increase in computer
           intelligence" [syn: {applaudable}, {commendable}, {laudable}]