Jealous = feeling resentment against someone because of that person's rivalry, success, or advantages (often followed by of ); feeling resentment because of another's success, advantage, etc.; characterized by or proceeding from suspicious fears or envious resentment; inclined to or troubled by suspicions or fears of rivalry, unfaithfulness, etc.; solicitous or vigilant in maintaining or guarding something.
Synonyms:covetous, demanding, emulous, envious, envying, grabby, grasping, green-eyed, grudging, guarded, intolerant, invidious, jaundiced, mistrustful, monopolizing, possessive, possessory, protective, questioning, resentful, rival, skeptical, solicitous, zealous.
Example: He was jealous of his rich brother.
Usage in Sentence: Jealous of, not from.
Don’t say: He is very jealous from his brother.
ü Say: He is very jealous of his brother.