jealous jealous /ˈdʒɛləs/

adjective

1. () Showing extreme cupidity; painfully desirous of another's advantages  ( covetous , envious , jealous )
   showing extreme cupidity; painfully desirous of another's advantages
    He was never covetous before he met her
   he was never covetous before he met her
    Jealous of his success and covetous of his possessions
   jealous of his success and covetous of his possessions
    Envious of their art collection
   envious of their art collection
   
2. () Suspicious or unduly suspicious or fearful of being displaced by a rival  ( green-eyed , overjealous , jealous )
   suspicious or unduly suspicious or fearful of being displaced by a rival
    A jealous lover
   a jealous lover