jealous

adjective

jeal·​ous ˈje-ləs 

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 management

—Havelock Ellis

b

: disposed to suspect rivalry or unfaithfulness

a jealous husband

3

: vigilant in guarding a possession

new colonies were jealous of their new independence

—Scott 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.”

Synonyms

• possessive

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

Indulging in these jealous behaviors, however, is a waste of time and energy since their past experiences are in the past for a reason, Ly says. —Jenna Ryu, SELF, 1 Nov. 2024

He was arrested in Santo Domingo in 2023 on suspicion of attacking two music producers, with TMZ reporting at the time that Hernandez was allegedly jealous of the producers for spending time with his then-girlfriend, the Dominican rapper and singer Yailin La Más Viral. —Charisma Madarang, Rolling Stone, 29 Oct. 2024

Martini Todd Wallace — a cameo that admittedly made Bialik a bit jealous. —EW.com, 21 Oct. 2024

Allie: This whole dynamic started to change where one of them always seemed to be the odd man out or was jealous. —Peter Van Sant, CBS News, 19 Oct. 2024

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

Kids Definition

jealous

adjective

jeal·​ous ˈjel-əs 

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

: watchful, careful

jealously adverb