Answer: jealous

AnswerCrossword Clue
JEALOUSGreen-eyed
JEALOUSResentful of a rival
JEALOUSGreen, in a way
JEALOUSEnvious
jealousenvious of others, also GEALOUS
jealouswatchful in guarding something
jealousresentful and envious, as of another's success