as in daily
occurring, done, produced, or appearing every day
a love as constant and certain as the diurnal tides
Synonyms & Similar Words
Relevance
Antonyms & Near Antonyms
as in periodical
a publication that appears at regular intervals
a collection of diurnals containing essays by preeminent 19th-century American writers and thinkers
Synonyms & Similar Words
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
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
Snow accumulations may be affected by diurnal trends and sun angle.
—Ca Weather Bot, Sacbee.com, 14 Oct. 2025
See All Example Sentences for diurnal
Adjective
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
Snow accumulations may be affected by diurnal trends and sun angle.
—Ca Weather Bot, Sacbee.com, 14 Oct. 2025
See All Example Sentences for diurnal
Recent Examples of Synonyms for diurnal
Adjective
-
Sports Edition is The Athletic’s first-ever game, a daily puzzle designed for players to find connections between 16 words on the game board.—
Mark Cooper,
New York Times,
8 June 2026
-
Residents of Russia’s largest cities have largely been sheltered from the daily realities of Russia’s war with Ukraine, now in its fifth year.—
Zahra Ullah,
CNN Money,
7 June 2026
Noun
-
The center’s resources—all free—include more than a million books and periodicals, with 400 terminals and 75 staff members available to help dig through them.—
Arati Menon,
Condé Nast Traveler,
7 June 2026
-
Galaxy, Analog, and Amazing Stories, those three periodicals – and our bathroom was piled high.—
Ben Mankiewicz,
CBS News,
7 June 2026
Noun
-
By the time Cantor arrived as a big-bodied midfielder, Petruska was also the sports editor for the high school newspaper, the San Marino Titan Shield.—
Josh Gross,
Daily News,
11 June 2026
-
Born into a financially struggling family, Matzner helped support his parents by delivering newspapers and selling dog food door-to-door.—
Wendy Bowman,
Robb Report,
11 June 2026
Noun
-
In a study published in the journal Science, researchers at Stanford tested 11 popular AI systems and found that AI chatbots were prone to flattering and validating the feelings of users, affirming a user’s actions 49% more often than humans did.—
Cathy Bussewitz,
Los Angeles Times,
11 June 2026
-
The most powerful factors affecting a child's brain development involve socioeconomic opportunities, according to a study in the journal Science.—
Jon Hamilton,
NPR,
11 June 2026
Noun
-
Five Hundred Years of Religion in America means this is not just another history going back to 1776, and this is not a book that equates religion with Christianity.—
Literary Hub,
Literary Hub,
9 June 2026
-
The inn serves as more of a comfortable home base in between outings—the lobby is a comfortable spot to chat or read a book, and the on-site restaurants offer convenience.—
Condé Nast,
Condé Nast Traveler,
9 June 2026
Noun
-
The unique red rock buttes often show up in movies, calendars and magazines.—
Staff,
USA Today,
8 June 2026
-
To receive the magazine, click here to subscribe.—
Max Gao,
HollywoodReporter,
7 June 2026
Cite this Entry
“Diurnal.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/diurnal. Accessed 14 Jun. 2026.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
