as in marginal
located at or near a border
a frontier town with a reputation for vice and lawlessness
Synonyms & Similar Words
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Antonyms & Near Antonyms
1
as in border
a region along the dividing line between two countries
the Apaches were once feared on both sides of the U.S.-Mexico frontier
Synonyms & Similar Words
2
as in countryside
a rural region that forms the edge of the settled or developed part of a country
Alaska has been called America's last frontier
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Example Sentences
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Recent Examples of frontier
Bartolomeo Sala, The Dial, 27 Mar. 2025
Seen as the next frontier in AI, agents are generating huge excitement.
—Bernard Marr, Forbes, 25 Mar. 2025
These studies could be foundational for future missions, such as the journey to Mars', which will require long voyages through the final frontier.
—Julian Dossett, Space.com, 25 Mar. 2025
At the frontiers of AI, researchers are developing new kinds of AI models that can learn and adapt throughout their lifetimes by continuously updating their weights.
—Rob Toews, Forbes, 23 Mar. 2025
See All Example Sentences for frontier
Noun
This sets the village up as a violent frontier milieu.
—Bartolomeo Sala, The Dial, 27 Mar. 2025
Seen as the next frontier in AI, agents are generating huge excitement.
—Bernard Marr, Forbes, 25 Mar. 2025
These studies could be foundational for future missions, such as the journey to Mars', which will require long voyages through the final frontier.
—Julian Dossett, Space.com, 25 Mar. 2025
At the frontiers of AI, researchers are developing new kinds of AI models that can learn and adapt throughout their lifetimes by continuously updating their weights.
—Rob Toews, Forbes, 23 Mar. 2025
See All Example Sentences for frontier
Recent Examples of Synonyms for frontier
Adjective
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Because of its price sensitivity and short investment horizon, shale acts as a global marginal producer.—
Steven Dudash,
Forbes.com,
1 Apr. 2025
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Ukrainian troops have made marginal gains in Russia's Belgorod region, it has been reported, as a map shows the state of play along the front line.—
Ron Estes,
MSNBC Newsweek,
29 Mar. 2025
Noun
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But a corresponding bill in neighboring Illinois, House Bill 1500, remains stuck in committee, and there is ample reason to be skeptical about any change to state borders taking place.—
Made by History,
Time,
7 Apr. 2025
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The administration has poured in resources to stop the spiraling immigration situation at the southern border.—
Sarah Rumpf-Whitten,
FOXNews.com,
7 Apr. 2025
Noun
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The Texas Department of Transportation is spending $540 million to widen and revamp stretches of I-20 and I-30 linking Fort Worth and Weatherford — a yearslong project that promises eased traffic, if not the preservation of remaining countryside.—
Jaime Moore-Carrillo,
Fort Worth Star-Telegram,
3 Apr. 2025
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The surrounding area is great for biking, hiking, and anyone else who needs a dose of medicine in the form of expansive countryside.—
Tim Nelson,
Architectural Digest,
31 Mar. 2025
Noun
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The immense scale of the disaster has piled a fresh crisis on the impoverished Southeast Asian country, where almost 20 million people were already in need of humanitarian assistance after four years of civil war.—
Ross Adkin,
CNN Money,
4 Apr. 2025
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More recent polling from Pew shows a country with negative but not-very-strong feelings about the ban.—
Kaitlyn Tiffany,
The Atlantic,
4 Apr. 2025
Noun
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Two resorts, direct flights, and an influx of tourists will mean that the island will no longer be a sleepy backwater.—
Hudson Lindenberger,
Forbes,
25 Mar. 2025
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The slow, tranquil sojourn along the lower Mekong River, cruising through rural Cambodia and Vietnam’s backwaters, felt more like being on a 19th-century yacht than a modern cruise liner.—
Julia Zaltzman,
Robb Report,
11 Mar. 2025
Noun
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To anyone who has toured wineries in Tuscany, the setting rings of the Italian hinterland.—
Lauren Mowery,
Forbes.com,
31 Mar. 2025
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Vance and his wife Usha visited an American military base in Greenland’s remote icy hinterland after the Second Lady scaled back plans for a more public-facing trip that sparked outrage among local officials and ordinary people.—
Dave Goldiner,
New York Daily News,
28 Mar. 2025
Noun
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The Colorado Avalanche Information Center has noted that most incidents involve backcountry skiers, snowboarders, and snowmobilers.—
Thao Nguyen,
USA TODAY,
25 Mar. 2025
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Large avalanches capable of burying or injuring people could occur in backcountry areas.—
Faisal Kutty,
Newsweek,
12 Mar. 2025
Noun
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By Lila Seidman Staff Writer Follow April 5, 2025 3 AM PT Poodle-dog bush, a pretty but dangerous plant, is growing in parts of the Angeles National Forest hit by recent wildfires.—
Lila Seidman,
Los Angeles Times,
5 Apr. 2025
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The geckos come out at night – so the team also goes trekking in the dark with flashlights to look for geckos perched on leaves and bushes.—
Jessie Yeung,
CNN Money,
28 Mar. 2025
Cite this Entry
“Frontier.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/frontier. Accessed 14 Apr. 2025.
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