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

Did you know?

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.
Beards were at one stage a part of the conflict opposing William and Kate to Harry and Meghan, after Harry wrote in his book Spare that his brother was jealous of his. Raja Krishnamoorthi, MSNBC Newsweek, 9 Apr. 2025 Smith and Hill, who was also named in the lawsuit, both vehemently denied all claims of wrongdoing and accused the plaintiffs of being jealous of Piper’s popularity and success. Lynsey Eidell, People.com, 9 Apr. 2025 Katelyn didn't realize holding her new puppy would make her older dog jealous. John W. Dean, MSNBC Newsweek, 7 Apr. 2025 An article from Rover said that dogs can get jealous, but not in the same way humans do. John W. Dean, MSNBC Newsweek, 7 Apr. 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

Browse Nearby Words

Cite this Entry

“Jealous.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/jealous. Accessed 22 Apr. 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

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!