One girl is jealous of another girls lunch.
- The definition of jealous is disliking when someone wants something you have.
An example of jealous is a husband who dislikes other men looking at his wife.
- The definition of jealous is guarding something that is yours.
An example of jealous is having asked your boss to not call you at home after work.
- very watchful or careful in guarding or keeping: jealous of one's rights
- resentfully suspicious of a rival or a rival's influence: a husband jealous of other men
- resentfully envious
- resulting from such feelings: a jealous rage
- Archaic requiring exclusive loyalty: “for I the Lord your God am a jealous God”
Origin of jealousMiddle English jelous from Old French gelos from Medieval Latin zelosus: see zeal
- Fearful or wary of losing one's position or situation to someone else, especially in a sexual relationship: Her new boyfriend was jealous of her male friends.
- Envious or resentful of the good fortune or achievements of another: I felt jealous when my coworker got a promotion. See Usage Note below.
- Having to do with or arising from feelings of apprehension, bitterness, or envy: jealous thoughts.
- Vigilant in guarding something: We are jealous of our good name.
- Intolerant of disloyalty or infidelity; autocratic: a jealous god.
Origin of jealousMiddle English jelous from Old French gelos, gelous from Vulgar Latin zēlōsus zealous, solicitous from Late Latin zēlus zeal ; see zeal.
Usage Note: Traditional usage holds that we are jealous when we fear losing something that is important to us and envious when we desire that which someone else has. In this view, one might experience jealousy upon seeing one's spouse flirt with another (because of the fear of losing the spouse), while one might experience envy upon seeing a friend with an attractive date (because of one's desire to have an attractive date of one's own). In common usage, this distinction is not always observed, and jealousy and jealous are often used in situations that involve envy. Our 2015 survey shows that the distinction is alive and well: large majorities of the Usage Panel approved the traditional uses of jealousy ( She was jealous when she saw her husband having dinner with another woman ) and envy ( He was envious of the expensive sports car his neighbor bought ), while only a minority accepted the switched uses: 29 percent accepted envious for the suspicious dinner, and 34 percent accepted jealous for the expensive sports car. The last figure does mean, though, that a third of the Panelists accept jealous meaning “envious,” and an even larger minority (43 percent) accept it when the entity being coveted is a person rather than an object, as in Never having been popular myself, I'm jealous of your many friends. It is evident from these results that many careful writers prefer to see the distinction between the two words maintained, with jealous being reserved for situations where one fears losing something and envious used for situations where one wants what one does not have.
(comparative more jealous, superlative most jealous)
- Suspecting rivalry in love; troubled by worries that one might have been replaced in someone's affections; suspicious of a lover or spouse's fidelity. [from 13th c.]
- Protective, zealously guarding, careful in the protection of something one has or appreciates. [from 14th c.]
- For you must not worship any other god, for the Lord, whose name is Jealous, is a jealous God. —Exodus 34:14 (NET)
- Envious; feeling resentful of someone for a perceived advantage, material or otherwise. [from 14th c.]
- Suspecting, suspicious.
Some usage guides seek to distinguish "jealous" from “envious”, using jealous to mean “protective of one’s own position or possessions” – one “jealously guards what one has” – and envious to mean “desirous of others’ position or possessions” – one “envies what others have”. This distinction is also maintained in the psychological and philosophical literature. However, this distinction is not reflected in usage, as reflected in the quotations of famous authors (above) using the word jealous in the sense “envious (of the possessions of others)”.
 From Old French jalous, from Late Latin zelosus, from Ancient Greek ζῆλος (zēlos, “zeal, jealousy”), from ζηλόω (zēloō, “to emulate, to be jealous”). Cognate to zeal.