1
as in solemn
not joking or playful in mood or manner
I'm serious when I say that no one should be walking in that neighborhood at night
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Antonyms & Near Antonyms
2
as in important
having a matter of importance as its topic
a very serious film that dealt with the aftermath of the Gulf War
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Antonyms & Near Antonyms
3
as in dangerous
involving potential loss or injury
a serious accident
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Antonyms & Near Antonyms
Example Sentences
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Recent Examples of serious
If California is serious about addressing its mental health crisis, policymakers must examine the barriers embedded throughout the professional pathway to becoming a licensed clinical social worker.
—
Luis Contreras,
San Diego Union-Tribune,
25 June 2026
Like many expectant parents facing a serious prenatal diagnosis, Tom and I rolled up our sleeves and did our homework.
—
Michelle Sie Whitten,
STAT,
25 June 2026
In 2023, the FAA recorded 21 serious runway incursions, but so far in 2026, the FAA has reported only four.
—
Alexandra Skores,
CNN Money,
25 June 2026
Reuters reported that a serious back injury had taken Abunada close to retiring earlier in his career.
—
Jodie Cook,
Forbes.com,
25 June 2026
See All Example Sentences for serious
Luis Contreras,
San Diego Union-Tribune,
25 June 2026
Like many expectant parents facing a serious prenatal diagnosis, Tom and I rolled up our sleeves and did our homework.
—
Michelle Sie Whitten,
STAT,
25 June 2026
In 2023, the FAA recorded 21 serious runway incursions, but so far in 2026, the FAA has reported only four.
—
Alexandra Skores,
CNN Money,
25 June 2026
Reuters reported that a serious back injury had taken Abunada close to retiring earlier in his career.
—
Jodie Cook,
Forbes.com,
25 June 2026
See All Example Sentences for serious
Recent Examples of Synonyms for serious
Adjective
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To be fair, abducted 9-year-old Rainy is pretty cute, with solemn eyebrows and a conscience that continually puts her in peril.
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The once-rising developer’s solemn promise is not likely to be fulfilled if court records in his federal criminal case and a parallel Securities and Exchange Commission lawsuit are any indication.
Adjective
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To address those concerns, Hulls has committed roughly $15 million to establish the Good Luck Fund, which acquires and preserves properties considered important to the community.
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What are the most important values of the community that the superintendent must honor regardless of pressure or politics?
Adjective
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Others develop dangerous fluctuations in blood pressure and abnormal heart rhythms because the autonomic nervous system becomes affected.
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Sometimes, the streets appear glittering; other times, seedy and dangerous.
Adjective
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Shortness of breath that becomes severe.
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Europe is the planet’s fastest-warming continent and these kinds of extreme heat waves are only expected to become more severe, frequent and prolonged unless humans rapidly phase out fossil fuels, the scientists said.
Adjective
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The collaboration pairs one of the most recognizable music artists of the last decade with a menu item designed to bring back familiar memories from Fetty Wap’s biggest era, while also celebrating his influence on pop culture and music.
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That quiet recovery is a big reason the procedure has moved from a private secret to something people openly mention.
Adjective
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Concrete casing and tubing – used to seal and extract oil – can lose integrity, causing leaks and potential hazardous gas releases.
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Concerns about hazardous chemicals led police to suggest residents evacuate, although many declined.
Adjective
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The school was a dream for a few years, with families talking about the idea, but the actual planning began in earnest last year.
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The result is an earnest tribute to Nicks’ vulnerability, resilience and artistry.
Adjective
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In the footage, three children appear to be emerging from the rubble one after another, seemingly without major injuries, as rescuers provided assistance.
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The announcement came just hours after the Supreme Court handed a major victory to the makers of the weedkiller Roundup, shielding it from thousands of lawsuits from states alleging the company failed to warn people the product could cause cancer.
Cite this Entry
“Serious.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/serious. Accessed 26 Jun. 2026.
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