as in weightless
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Recent Examples of lighter-than-air
Airships, on the other hand, emit little carbon because their vertical lift comes from lighter-than-air gases such as helium instead of burning fuel during diagonal ascent, and their propeller propulsion can be entirely electric.
—
New Atlas, 27 Apr. 2026
Last year, state legislators began debating strengthening protections and prohibiting the sale of non-biodegradable helium and lighter-than-air gas balloons.
—Stephen Underwood, Hartford Courant, 31 Mar. 2026
But even at Thanksgiving, this lighter-than-air pie filling is welcome amid a sea of other, thicker custard pies.
—Jenna Sims, Southern Living, 18 Feb. 2026
The city already has regulations including restrictions on single-use plastic bags for carryout, plastic straws and stirrers, and balloons filled with helium or other lighter-than-air gasses.
—Luke Harold, San Diego Union-Tribune, 1 Jan. 2026
Still, Leishman said interest in lighter-than-air ships has been cyclical, waxing and waning over time.
—Jeanine Santucci, USA Today, 22 Nov. 2025
Once denoting a specific type of cake, the name Bundt now conjures images of uniform mounds of all flavors, from the traditional dense party cake to lighter-than-air angel cakes.
—Arati Menon, Condé Nast Traveler, 7 Aug. 2025
But by the late 19th century, flying via lighter-than-air gases was already close to 100 years old.
—Erik Ofgang, Smithsonian Magazine, 11 June 2024
New Atlas, 27 Apr. 2026
Last year, state legislators began debating strengthening protections and prohibiting the sale of non-biodegradable helium and lighter-than-air gas balloons.
—Stephen Underwood, Hartford Courant, 31 Mar. 2026
But even at Thanksgiving, this lighter-than-air pie filling is welcome amid a sea of other, thicker custard pies.
—Jenna Sims, Southern Living, 18 Feb. 2026
The city already has regulations including restrictions on single-use plastic bags for carryout, plastic straws and stirrers, and balloons filled with helium or other lighter-than-air gasses.
—Luke Harold, San Diego Union-Tribune, 1 Jan. 2026
Still, Leishman said interest in lighter-than-air ships has been cyclical, waxing and waning over time.
—Jeanine Santucci, USA Today, 22 Nov. 2025
Once denoting a specific type of cake, the name Bundt now conjures images of uniform mounds of all flavors, from the traditional dense party cake to lighter-than-air angel cakes.
—Arati Menon, Condé Nast Traveler, 7 Aug. 2025
But by the late 19th century, flying via lighter-than-air gases was already close to 100 years old.
—Erik Ofgang, Smithsonian Magazine, 11 June 2024
Recent Examples of Synonyms for lighter-than-air
Adjective
-
The neutrino is a nearly weightless particle that sails through matter like a phantasm.—
Joseph Howlett,
Scientific American,
8 May 2026
-
This make the pie filling extra airy and almost weightless.—
Kaitlyn Yarborough,
Southern Living,
6 May 2026
Adjective
-
There’s nothing worse than sweaty feet — but luckily, lightweight, breathable, and cute sneakers do exist to keep your feet cool but still supported.—
Aashna Gheewalla,
PEOPLE,
14 May 2026
-
The collection also offers the Mama Tee, a lightweight cotton jersey tee available in gray and ivory, and the Girlfriend Tee, a white single knit jersey with a structured peplum silhouette.—
Angela Velasquez,
Footwear News,
14 May 2026
Adjective
-
Hz [Warp] Warp lodestars Seefeel are most recognizable for their vaporous blend of shoegaze, ambient, and experimental electronic music.—
Jazz Monroe,
Pitchfork,
1 May 2026
-
The sky above is filled with eagles, an American flag and vaporous images.—
Will Weissert,
Fortune,
13 Apr. 2026
Adjective
-
What causes the unstoppable nucleation of bubbles within a body of magma, which can propel hot, buoyant magma through the crust above with soda can–like effervescence?—
Quanta Magazine,
Quanta Magazine,
8 May 2026
-
Friendly and open, Leon has an energetic, buoyant personality.—
Patrick Z. McGavin,
Chicago Tribune,
6 May 2026
Adjective
-
This can alter the amount and types of ACE-inhibiting peptides created during fermentation2—and possibly account for kombucha's unsubstantial effect on blood pressure.—
MD Published,
Verywell Health,
27 Dec. 2025
-
Then again … This really does sum up Reeves’s unsubstantial performance as Jonathan Harker, whose new client is definitely up to no good.—
Tim Grierson,
Vulture,
18 Oct. 2025
Adjective
-
Then, in 2011, Jungsik Yim opened this intimidatingly elegant restaurant, introducing New Yorkers to a rarefied modern elaboration of the cuisine that was both grand in sweep and granular in detail.—
Ligaya Mishan,
New York Times,
11 May 2026
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The tests involved the new, larger rotor blades that will convey the next-gen helicopters through the rarefied Martian atmosphere, just 1 percent the density of air at sea level on Earth.—
ArsTechnica,
ArsTechnica,
8 May 2026
Adjective
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That spirit is exemplified by Ford, a gregarious hostess who moves through the various groupings of women in a diaphanous full-length blue dress, introducing Godfred to a group of attendees and hugging both first-timers and her OGs enthusiastically.—
Paula L. Woods,
Los Angeles Times,
4 May 2026
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The diaphanous music of Lana Del Rey, though, never sounds bogged down by the anxiety of influence.—
New York Times,
New York Times,
28 Apr. 2026
Adjective
-
The wall was as insubstantial as a set on a film studio’s back lot.—
Rebecca Mead,
New Yorker,
13 Apr. 2026
-
Even with her strong work, the film around her always feels, at best, insubstantial, and, at worst, incomplete.—
Chase Hutchinson,
IndieWire,
19 Mar. 2026
Cite this Entry
“Lighter-than-air.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/lighter-than-air. Accessed 16 May. 2026.
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