1
as in spiritual
not composed of matter
as thin and unsubstantial as the wind
Synonyms & Similar Words
Relevance
Antonyms & Near Antonyms
2
as in insubstantial
being of a material lacking in sturdiness or substance
unsubstantial wisps of lace
Synonyms & Similar Words
Antonyms & Near Antonyms
3
as in weak
lacking bodily strength
an unsubstantial child who was unfit to play sports of any kind
Synonyms & Similar Words
Antonyms & Near Antonyms
Example Sentences
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Recent Examples of unsubstantial
The algorithm fed the Giants pitcher a savory yet unsubstantial diet of short-form content.
—
Justice Delos Santos, Mercury News, 31 Mar. 2025
Salads Salads don’t have to feel flimsy or unsubstantial.
—Katie Workman, San Diego Union-Tribune, 6 Sep. 2023
Still, Republicans plowed ahead with unsubstantial allegations of collusion between government officials and the company’s old regime.
—Cat Zakrzewski and Cristiano Lima, Anchorage Daily News, 9 Feb. 2023
From a personal finance perspective, people with extra cash should feel free to put an unsubstantial portion of their wealth into high-risk, high-volatility assets like crypto or meme stocks or even Super Bowl bets (thanks for the two-touchdown performance, Cooper Kupp).
—Scott Nover, Quartz, 14 Feb. 2022
See All Example Sentences for unsubstantial
Justice Delos Santos, Mercury News, 31 Mar. 2025
Salads Salads don’t have to feel flimsy or unsubstantial.
—Katie Workman, San Diego Union-Tribune, 6 Sep. 2023
Still, Republicans plowed ahead with unsubstantial allegations of collusion between government officials and the company’s old regime.
—Cat Zakrzewski and Cristiano Lima, Anchorage Daily News, 9 Feb. 2023
From a personal finance perspective, people with extra cash should feel free to put an unsubstantial portion of their wealth into high-risk, high-volatility assets like crypto or meme stocks or even Super Bowl bets (thanks for the two-touchdown performance, Cooper Kupp).
—Scott Nover, Quartz, 14 Feb. 2022
See All Example Sentences for unsubstantial
Recent Examples of Synonyms for unsubstantial
Adjective
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Though operational only from 2000, its regal and spiritual trappings lend a unique old-world charm to those who come here—mostly from India, the Middle East, the UK, USA, France and Russia—looking for more than massages and weight loss.—
Condé Nast,
Condé Nast Traveler,
17 Mar. 2026
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Honig is the newest assistant rabbi at Congregation Beth Shalom in Northbrook, one of the largest Conservative Jewish synagogues on the North Shore and the spiritual home to roughly 1,000 families.—
Claire Murphy,
Chicago Tribune,
17 Mar. 2026
Adjective
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Even with her strong work, the film around her always feels, at best, insubstantial, and, at worst, incomplete.—
Chase Hutchinson,
IndieWire,
19 Mar. 2026
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Scarlet’s good intentions to end wars by way of sheer determination to do what’s right might prove insubstantial in practice.—
Carlos Aguilar,
Los Angeles Times,
6 Feb. 2026
Adjective
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What can’t be easily seen or measured but can impact recovery as much as a weak muscle or stiff joint are the psychological aspects.—
Ian McMahan,
New York Times,
21 Mar. 2026
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After the worst of it, a similar but weaker storm was forecast to bring more rain through this weekend.—
CBS News,
CBS News,
21 Mar. 2026
Adjective
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Positioned as a large-scale genre event, the series updates the legendary SFX property with a contemporary political and social edge, with Shun Oguri leading the cast as a detective hunting a seemingly incorporeal killer.—
Patrick Brzeski,
HollywoodReporter,
27 Jan. 2026
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In fact, magical life has the potential to be even more radically incorporeal than our own.—
Literary Hub,
Literary Hub,
26 June 2025
Adjective
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That flimsy bobber did its job and triggered the most deadly terrorist act of the Civil Rights Movement.—
John Archibald,
Southern Living,
16 Mar. 2026
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Listen, comedy films have been constructed around flimsier premises.—
Frank Scheck,
HollywoodReporter,
15 Mar. 2026
Adjective
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Congress has for the most part registered only feeble and ineffective opposition to such executive action.—
Sarah Burns,
The Conversation,
4 Mar. 2026
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Scratches above the dead body reach upward, marks that read as feeble attempts to cling to some semblance of life.—
Anel Rakhimzhanova,
Artforum,
1 Mar. 2026
Adjective
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The movie addresses metaphysical questions such as the egregore of a generation, the nature of evil, and the search for God in times of His absence.—
PhotoVogue,
Vogue,
19 Mar. 2026
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The most fundamental consequences of being struck by lightning are often metaphysical, and not easily communicable.—
Jacob Stern,
The Atlantic,
16 Mar. 2026
Adjective
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The type of memory flashbacks that are shot at knee level, gauzy and out of focus, with a gossamer visual touch to conjure whispering, buried emotions of the past.—
Ryan Lattanzio,
IndieWire,
17 Feb. 2026
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Perverts By turns a budding chart sensation, a political firebrand, and an enthusiastic cataloguer of cryptids, Ethel Cain interrupts a stream of gossamer pop, folk, and rock records with Perverts, a droning rejection of the accessibility of her 2022 Billboard top-ten debut Preacher’s Daughter.—
Craig Jenkins,
Vulture,
2 Dec. 2025
Cite this Entry
“Unsubstantial.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/unsubstantial. Accessed 21 Mar. 2026.
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