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

Soon Balderas associated certain songs with her daily routine, particularly Antonio Aguilar songs.

— Veronica Fernandez-Alvarado, Sacbee.com, 11 Sep. 2026
Then, as now, the cable system reached only the five boroughs of New York City, giving NY1 a loyal, concentrated audience of more than 1 million daily viewers in the capital of media and finance.

— Dade Hayes, Deadline, 11 Sep. 2026

Definition of daily

Noun

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
It is anticipated that all IEEE periodicals will be included in the Integrity Hub screening by the end of this year.

— IEEE Spectrum, IEEE Spectrum, 30 July 2026

Definition of periodical

Noun

Local newspapers, foremost among them the New York Times, opened up their obituary pages to cover, in humanizing detail, the lives of ordinary people who died in the attacks.

— Robert W. Snyder, New York Daily News, 6 Sep. 2026
The 12 defendants, including Khalifa, were sentenced to death by hanging and fined 500,000 Egyptian pounds ($9,800) by Cairo’s Criminal Court, the al-Ahram newspaper reported.

— Eyad Kourdi, CNN Money, 6 Sep. 2026

Definition of newspaper

Noun

People who live alone and work jobs that can be done remotely report being more mentally distressed and socially isolated than those whose work has to be done in person, a recent study published in the journal Science found.

— Cordilia James, CNN Money, 14 Sep. 2026
Guests received personalized invites, a Vivet journal documenting Cenat’s journey starting the brand, replete with Polaroids taped in the pages.

— Jeff Ihaza, Rolling Stone, 14 Sep. 2026

Definition of journal

Noun

In addition to Jim Murray’s anthology, here are some other sports books that have inspired Wickersham.

— Aaron Reiss, Los Angeles Times, 5 Sep. 2026
In late July, HRW released a book-length report documenting the crimes committed in the first four months of the conflict.

— Aryeh Neier, The New York Review of Books, 5 Sep. 2026

Definition of book

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ditzy

diurnal

diurnals

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“Diurnal.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/diurnal. Accessed 16 Sep. 2026.

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Synonyms of diurnal

adjective

noun

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