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
César Rodríguez, New York Times, 18 Jan. 2025
Who pays liability will be ‘new frontier’ for California
Jan. 15, 2025
The fallout from the fires is an abrupt disruption for a company that had been surging in recent months.
—Roger Vincent, Los Angeles Times, 16 Jan. 2025
Fox is taking the Super Bowl to a new frontier—or, at least to one that is new for Fox.
—Brian Steinberg, Sportico.com, 15 Jan. 2025
The American frontier was a brutal place, but no more brutal than a zombie apocalypse.
—Erik Kain, Forbes, 11 Jan. 2025
See all Example Sentences for frontier 
Noun
The quieter border these days contrasts with the recent years of frequent tragedies along the frontier, including family separations and the 2023 fire at a migrant detention facility in Ciudad Juárez that killed dozens.
—César Rodríguez, New York Times, 18 Jan. 2025
Who pays liability will be ‘new frontier’ for California
Jan. 15, 2025
The fallout from the fires is an abrupt disruption for a company that had been surging in recent months.
—Roger Vincent, Los Angeles Times, 16 Jan. 2025
Fox is taking the Super Bowl to a new frontier—or, at least to one that is new for Fox.
—Brian Steinberg, Sportico.com, 15 Jan. 2025
The American frontier was a brutal place, but no more brutal than a zombie apocalypse.
—Erik Kain, Forbes, 11 Jan. 2025
See all Example Sentences for frontier
Recent Examples of Synonyms for frontier
Adjective
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Since a number of women experience marginal biotin deficiencies during pregnancy, Ritual opted to include a small amount of biotin (150 mcg, to be exact) in their prenatal multivitamin to bridge any nutritional gaps.—
Kristine Thomason,
Vogue,
26 Jan. 2025
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Out west in Montana, another state where Republicans control both chambers of the legislature and governor’s mansion, lawmakers have introduced a bill to cut the state’s top marginal income tax rate from 5.9% to 4.9%.—
Patrick Gleason,
Forbes,
21 Jan. 2025
Noun
-
Thousands of additional active-duty troops are being ordered to the US southern border.—
Catherine E. Shoichet,
CNN,
25 Jan. 2025
-
Noem will be tasked with delivering on Trump’s favorite issue, border security.—
Associated Pess,
Hartford Courant,
25 Jan. 2025
Noun
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Set in 1973, Rabbit Trap stars Dev Patel and Rosy McEwen as Darcy and Daphne, an influential musical couple from London who retreats to an isolated cabin in the Welsh countryside to finish their next album.—
Glenn Garner,
Deadline,
24 Jan. 2025
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Constable renders the particulars of the 19th-century British countryside with dazzling care.—
Daniel Foster,
National Review,
23 Jan. 2025
Noun
-
Marczak was inspired by the outlaw country artists of the past such as Townes Van Zandt, Johnny Cash and Emmylou Harris, whose records typically featured a mix of covers and originals.—
Britt Julious,
Chicago Tribune,
22 Jan. 2025
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By 1997, when 84 countries signed the Kyoto Protocol to curb global greenhouse gas emissions, the oil industry had built an effective apparatus for actively discrediting climate science and opposing policies and actions that could help slow climate change.—
Joe Árvai,
The Conversation,
22 Jan. 2025
Noun
-
Why are the Ukrainians risking lives and resources on a comparatively meaningless action in a sector that’s a relative backwater, when critical Ukrainian strongpoints in eastern Ukraine’s Donetsk Oblast are under relentless Russian assault?—
David Axe,
Forbes,
22 Dec. 2024
-
But even as ties have grown in recent years, Washington’s foreign policy establishment still considers Africa to be a strategic backwater.—
Ken Opalo,
Foreign Affairs,
4 Dec. 2024
Noun
-
As Russia launches its full-scale invasion of Ukraine, primary schools across Russia’s hinterlands are transformed into recruitment stages for the war.—
Mike Fleming Jr,
Deadline,
22 Jan. 2025
-
Glenn has been a big part of Lions’ coach Dan Campbell’s staff in their efforts to bring that awful franchise from the hinterlands.—
Mac Engel,
Fort Worth Star-Telegram,
13 Jan. 2025
Noun
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To access a plethora of mountainous backcountry trails, go east.—
Lydia Mansel,
Travel + Leisure,
25 Jan. 2025
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The larger lakes can be busy with motorboat traffic, but the smaller interior lakes are linked by a series of marked canoe trails and backcountry campsites.—
Graham Averill,
Outside Online,
21 Jan. 2025
Noun
-
Look at nature and consider the fact that although bushfires destroy, there are certain bushes that only grow as a result of that bushfire.—
Simone Milasas,
Forbes,
22 Jan. 2025
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The key is to ensure the plants and bushes aren't touching each other and the house, acting like a highway for the flames.—
Lauren Sommer,
NPR,
17 Jan. 2025
Thesaurus Entries Near frontier
Cite this Entry
“Frontier.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/frontier. Accessed 4 Feb. 2025.
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