WordWeb Online

1. Strongly wanting someone else's position, advantages or possessions
   "he was never covetous before he met her"; "jealous of his success and covetous of his possessions";
   - envious, jealous
    
2. Immoderately desirous of acquiring e.g. wealth
   "casting covetous eyes on his neighbour's fields";
   - avaricious, grabby [N. Amer, informal], grasping, greedy, prehensile

See also: acquisitive, desirous, wishful