jealous

adjective

jeal·​ous ˈje-ləs How to pronounce jealous (audio)
1
: hostile toward a rival or one believed to enjoy an advantage : envious
His success made his old friends jealous.
They were jealous of his success.
2
a
: intolerant of rivalry or unfaithfulness
jealous of the slightest interference in household managementHavelock Ellis
b
: disposed to suspect rivalry or unfaithfulness
a jealous husband
3
: vigilant in guarding a possession
new colonies were jealous of their new independenceScott Buchanan
jealously adverb
jealousness noun

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Zealous vs. Jealous

Zealous and jealous share not just a rhyme, but an etymology. Both words ultimately come from the Latin zelus “jealousy,” and in the past their meanings were somewhat closer to each other than they are today. In the 16th and 17th centuries, zealous occasionally was used in biblical writing to refer to a quality of apprehensiveness or jealousy of another. By the 18th century, however, it had completely diverged in meaning from jealous, signifying “warmly engaged or ardent on behalf of someone or something.” Today, zealous often carries a connotation of excessive feeling: it typically means “fiercely partisan” or “uncompromisingly enthusiastic.”

Examples of jealous in a Sentence

His success has made some of his old friends jealous. She became very jealous whenever he talked to other women. He was in a jealous rage.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Alison’s jealous panic is quickly revealed to be based on a misunderstanding. Charlie Tyson, New Yorker, 4 June 2025 This doesn’t sit well with Mia’s very jealous ex-boyfriend Connor (Aramis Knight, oozing villainy as if to the Karate Kid manor born), who gives Li a black eye with a vicious sucker punch. Frank Scheck, HollywoodReporter, 28 May 2025 Additionally, in one more piece of the prosecution’s often plodding building of the criminal case, Clark spoke of her then jealous boss Combs’ beef with Kid Cudi. Dominic Patten, Deadline, 27 May 2025 Diddy was accused of blowing up Kid Cudi’s car in a jealous rage Shortly after finding out about their relationship, Combs allegedly threatened to blow up Mescudi's car, as detailed in the lawsuit. Jordana Comiter, People.com, 22 May 2025 See All Example Sentences for jealous

Word History

Etymology

Middle English jelous, from Anglo-French gelus, from Vulgar Latin *zelosus, from Late Latin zelus zeal — more at zeal

First Known Use

13th century, in the meaning defined at sense 2a

Time Traveler
The first known use of jealous was in the 13th century

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Cite this Entry

“Jealous.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/jealous. Accessed 10 Jun. 2025.

Kids Definition

jealous

adjective
jeal·​ous ˈjel-əs How to pronounce jealous (audio)
1
: demanding complete devotion
2
: feeling mean resentment toward a rival or competitor
3
: fearful of the loss of a loved one's devotion
4
jealously adverb

More from Merriam-Webster on jealous

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