1
as in thin
being of less than usual width
a hairline crack in the mug, almost too small to notice, was enough to make the mug break when filled with hot tea
Synonyms & Similar Words
Relevance
Antonyms & Near Antonyms
2
as in subtle
made or done with extreme care and accuracy
a hairline distinction between her rating of certain things as "necessary" and others as "absolutely necessary"
Synonyms & Similar Words
Antonyms & Near Antonyms
3
as in mathematical
meeting the highest standard of accuracy
an ultrasensitive telescope that requires hairline placement of the lenses
Synonyms & Similar Words
Antonyms & Near Antonyms
as in inch
a very small distance or degree
the controversial measure passed by a hairline, the margin of victory being but a single vote
Synonyms & Similar Words
Antonyms & Near Antonyms
Example Sentences
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Recent Examples of hairline
Rabekah Henderson, Southern Living, 8 July 2025
The hairline is intact, as are the abs and muscle tone.
—Mac Engel, Fort Worth Star-Telegram, 25 June 2025
How to Use: According to the brand, gently press the needles against your hairline, brushing from the tip of your scalp above your forehead and backwards to base of your head.
—Conçetta Ciarlo, Vogue, 30 July 2025
Following years, there was still thinning of the hairline, but the major difference was spotted in 2006, the year Woods lost his father, Earl Woods.
—Devlina Sarkar, MSNBC Newsweek, 12 July 2025
See All Example Sentences for hairline
Noun
And what starts out as a few hairline cracks can grow into something much larger.
—Rabekah Henderson, Southern Living, 8 July 2025
The hairline is intact, as are the abs and muscle tone.
—Mac Engel, Fort Worth Star-Telegram, 25 June 2025
How to Use: According to the brand, gently press the needles against your hairline, brushing from the tip of your scalp above your forehead and backwards to base of your head.
—Conçetta Ciarlo, Vogue, 30 July 2025
Following years, there was still thinning of the hairline, but the major difference was spotted in 2006, the year Woods lost his father, Earl Woods.
—Devlina Sarkar, MSNBC Newsweek, 12 July 2025
See All Example Sentences for hairline
Recent Examples of Synonyms for hairline
Adjective
-
The water pressure then causes the vehicle to rise and slide on a thin layer of water between the tires and the road, making the driver lose control.—
NC Weather Bot,
Charlotte Observer,
17 Aug. 2025
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Details on the election process are thin, but many citizens could be casting their votes in an active conflict zone or under the eyes of armed soldiers – a terrifying prospect that some say could lead to more violence.—
Helen Regan,
CNN Money,
17 Aug. 2025
Adjective
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There's a subtle but powerful form of manipulation happening in AI companions.—
Cornelia C. Walther,
Forbes.com,
17 Aug. 2025
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The spawn, which typically takes place over a few days and lasts less than 20 minutes, is triggered by subtle environmental cues — moon phase, tides and water temperatures — that healthy reefs once responded to in consistent synchronization.—
Ashley Miznazi,
Miami Herald,
17 Aug. 2025
Adjective
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Yes, TikTok’s mind-reading algorithm is, at its mathematical core, nearly identical to Facebook’s algorithm.—
Noah Giansiracusa,
Time,
7 Aug. 2025
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Palmieri tackled the boiling crescendo and eventual release of tension in salsa music with the methodology of a scientist — a mathematical equation that he was trained and disciplined to resolve.—
Ernesto Lechner,
Rolling Stone,
6 Aug. 2025
Noun
-
Small clutch bags no larger than 4.5 by 6.5 inches with or without a handle or strap.—
Andy Humbles,
The Tennessean,
12 Aug. 2025
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According to the South Florida Water Management District, Palm Beach County has had 65% of normal rainfall for the year thus far — more than 12 inches below normal.—
Bill Kearney,
Sun Sentinel,
12 Aug. 2025
Adjective
-
Career growth inside companies still follows a narrow script—progress often defined by vertical movement alone.—
Vibhas Ratanjee,
Forbes.com,
17 Aug. 2025
-
Abbott put redistricting on the agenda at the urging of President Donald Trump, who wants to shore up Republicans’ narrow House majority and avoid a repeat of his first presidency, when the 2018 midterms restored Democrats to a House majority that blocked his agenda and twice impeached him.—
Alexandra Kukulka,
Chicago Tribune,
16 Aug. 2025
Adjective
-
Exercising sound discretion while remaining faithful to the grantor’s wishes is a delicate balancing act that requires insight and judgment.—
Royce Ramey,
Forbes.com,
7 Aug. 2025
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Another layer of pastry sits atop the mixture and is covered in crystal sugar, which adds a nice sweetness to contrast the tart filling, as well as a delicate crunch in each bite.—
Kimberly Holland,
Southern Living,
7 Aug. 2025
Adjective
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Beyond complying with regulations, embedding traceability and life cycle data directly into products can enable leaders in the tech industry to drive smarter product development, more accurate forecasting and stronger supply chain and inventory management.—
Megan Brewster,
Forbes.com,
8 Aug. 2025
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Though many military leaders and scientists and politicians describe themselves as experts on the subject of nuclear war, that assessment might not be entirely accurate.—
Andre Mouchard,
Oc Register,
7 Aug. 2025
Noun
-
The 19-inch lanyard can be slipped on and off your neck without mussing your hair as well.—
Izzy Baskette,
People.com,
12 Aug. 2025
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This fast-absorbing spray delivers serious hydration and nourishment from the neck down.—
Christa Joanna Lee,
Allure,
12 Aug. 2025
Cite this Entry
“Hairline.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/hairline. Accessed 22 Aug. 2025.
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