DIURNAL Synonyms: 73 Similar and Opposite Words

diurnal 1 of 2

adjective

dī-ˈər-nᵊl

Definition of diurnal

as in daily

occurring, done, produced, or appearing every day a love as constant and certain as the diurnal tides

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Antonyms & Near Antonyms

diurnal

2 of 2

noun

as in periodical

a publication that appears at regular intervals a collection of diurnals containing essays by preeminent 19th-century American writers and thinkers

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Example Sentences

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.

Recent Examples of diurnal

Adjective

During its 12-day journey, SE2 completed one full day-night diurnal cycle over New Mexico and three consecutive diurnals off the Brazilian coast. — Chris Young, Interesting Engineering, 14 Apr. 2026 Overnight lows will drop into the low 40s under clear skies, marking a 30-degree diurnal swing in some spots. — Senior Newsroom Meteorologist, San Francisco Chronicle, 3 Feb. 2026 This doubling of the diurnal might happen once a year. — Lauren Bostwick, CBS News, 18 Jan. 2026 The watery and stable microclimate within the caves long ago could have hosted microbial colonies, and today the caves are protected from the extreme conditions on Mars' surface, such as wildly different diurnal temperatures, dust storms and solar ultraviolet and cosmic-ray radiation. — Keith Cooper, Space.com, 24 Nov. 2025 See All Example Sentences for diurnal

Recent Examples of Synonyms for diurnal

Adjective

Between 26 and 35 vessels per day have transited this week, down from the 35 to 40 daily average of the prior eight weeks, according to Dimitris Ampatzidis, maritime risk and compliance manager at Kpler.

— Arkansas Online, Arkansas Online, 19 Sep. 2026
As the Moon highlights what matters most to you, Chiron draws attention to your daily responsibilities and well-being.

— Tarot.com, Chicago Tribune, 19 Sep. 2026

Definition of daily

Noun

Operating for nearly a century, Algani began in 1927 as a modest seller of newspapers, periodicals, and postcards before evolving into one of the city’s first international newsstands.

— Eleonora Giordani, Vogue, 17 Sep. 2026
People who might be lucky to have a roof over their heads gathered there to read American books and periodicals, watch American movies, listen to lectures about America, tap their toes to jazz from America.

— Ian Buruma, New Yorker, 10 Aug. 2026

Definition of periodical

Noun

In 2024, police say a man broke into the newspaper’s new offices and stole the paper’s two Pulitzer Prize gold medals.

— Los Angeles Times, Los Angeles Times, 19 Sep. 2026
According to Robertson, a local newspaper received a tip from an unnamed member of the Borden family that Lizzie and John were too close, but there was no evidence to back up the rumor.

— Rafaela Bassili, Vulture, 18 Sep. 2026

Definition of newspaper

Noun

In one of these journals, called Notebook B, there is an incidental sketch, a few scratched lines like the barren twigs of a winter tree.

— Literary Hub, Literary Hub, 22 Sep. 2026
The research, published in the scientific journal Microbial Cell, examined the effect of caffeine on fission yeast cells.

— Maggie Ryan, Flow Space, 21 Sep. 2026

Definition of journal

Noun

The release of Mohammadi's book this month coincides with Amini's death to honor her memory, her representatives said.

— Arkansas Online, Arkansas Online, 20 Sep. 2026
Annie Dillard became the youngest woman ever to win the Pulitzer Prize for General Nonfiction, at the age of 28, for her book, Pilgrim at Tinker Creek.

— Scott Simon, NPR, 19 Sep. 2026

Definition of book

Noun

Kiki writes in both Italian and English, and recently saw one of her pieces in Italian appear in Grande Cucina, an Italian food magazine dedicated to Italian and international cuisine.

— Condé Nast, Condé Nast Traveler, 22 Sep. 2026
Joan Didion, the mistress of concision and a Hemingway admirer, began her career writing captions and sidebars to fit around pictures in women’s magazines.

— Louis Menand, New Yorker, 21 Sep. 2026

Definition of magazine

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ditzy

diurnal

diurnals

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Style

“Diurnal.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/diurnal. Accessed 23 Sep. 2026.

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Synonyms of diurnal

adjective

noun

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