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
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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"
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3
as in mathematical
meeting the highest standard of accuracy
an ultrasensitive telescope that requires hairline placement of the lenses
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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
Jesa Marie Calaor, Allure, 31 Jan. 2026
His brief break with the president was more a hairline fracture than a full rupture.
—Russell Berman, The Atlantic, 23 Jan. 2026
Clinics that clearly explain timelines, graft strategy, hairline design, and long-term follow-up tend to set more realistic expectations, helping patients make informed decisions rather than chasing quick fixes.
—Wyles Daniel, USA Today, 20 Jan. 2026
Check frames for chips, rust spots, hairline cracks, or loose joints.
—Timothy Dale, Better Homes & Gardens, 13 Jan. 2026
See All Example Sentences for hairline
Noun
Volf sewed the bundles in and used the Got2B Glued Blasting Freeze Spray to lay the closure down to my hairline.
—Jesa Marie Calaor, Allure, 31 Jan. 2026
His brief break with the president was more a hairline fracture than a full rupture.
—Russell Berman, The Atlantic, 23 Jan. 2026
Clinics that clearly explain timelines, graft strategy, hairline design, and long-term follow-up tend to set more realistic expectations, helping patients make informed decisions rather than chasing quick fixes.
—Wyles Daniel, USA Today, 20 Jan. 2026
Check frames for chips, rust spots, hairline cracks, or loose joints.
—Timothy Dale, Better Homes & Gardens, 13 Jan. 2026
See All Example Sentences for hairline
Recent Examples of Synonyms for hairline
Adjective
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Without reliably cold temperatures, snow is wetter and thinner, conditions are rainier — and for athletes that can be dangerous.—
Laura Paddison,
CNN Money,
10 Feb. 2026
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And the attorneys who are assigned are often spread thin and unable to provide quality representation, let alone peer support.—
Raynee Howell,
Oklahoma Watch,
9 Feb. 2026
Adjective
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These subtle changes allowed scientists to calculate the planet’s dimensions with unprecedented accuracy, refining measurements that had remained largely unchanged since the 1970s.—
Neetika Walter,
Interesting Engineering,
5 Feb. 2026
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The 100 percent cotton jean features a true mid-rise, straight-leg silhouette with a subtle wedgie fit.—
Angela Velasquez,
Sourcing Journal,
4 Feb. 2026
Adjective
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In the same period, mathematician Gladys West developed the mathematical models for global positioning systems, known as GPS.—
Melinda Laituri,
The Conversation,
4 Feb. 2026
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Alexander does not possess Hall’s je ne sais quoi,which goes beyond the mathematical proportions a plastic surgeon might recommend and toward an innate sense of style.—
Jackson McHenry,
Vulture,
4 Feb. 2026
Noun
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Fundraiser tickets for the club will be sold, with a Hummingbird 15-inch Solix as the prize.—
Melinda Moore,
Chicago Tribune,
5 Feb. 2026
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The ball of the shoe to the heel has a tapered height, with the heel reaching three inches for a little extra thickness.—
Olivia Dubyak,
Travel + Leisure,
5 Feb. 2026
Adjective
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Experts believe the crown’s flexible mount was strained when thieves wrenched it from its display through a narrow slot cut by the angle grinder, according to a report by the Louvre.—
Laura Sharman,
CNN Money,
6 Feb. 2026
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While investigators continue to evaluate the validity of the notes, some Americans may wonder if the Bitcoin address would be enough to find the culprit or at least narrow the search for the kidnapper.—
Jane Onyanga-Omara,
USA Today,
6 Feb. 2026
Adjective
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Bring in Other Scents Scent can be introduced in a variety of ways, from candles and diffusers to delicate room sprays.—
Kate Donovan,
Martha Stewart,
5 Feb. 2026
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Young boys cleaned test tubes, brawny machinists built gauges and mills, and scales delicate enough to weigh an inch of a spider's web.—
Natalia Sánchez Loayza,
Scientific American,
5 Feb. 2026
Adjective
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Prices were accurate at the time of publication but may change.—
Jennifer Sangalang,
Florida Times-Union,
5 Feb. 2026
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In the past year, the company has added two new integrations to provide users with more accurate data from their Oura ring, as well as 14 new features addressing, among other things, pregnancy and cumulative stress.—
Marco Quiroz-Gutierrez,
Fortune,
4 Feb. 2026
Noun
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Manscaped’s ‘Hair Ballad’ Several ads trafficked in revulsion as an attention-getter, none more so than this one for a body shaver featuring various clumps of removed body hair singing with their little hairy mouths.—
Omar L. Gallaga,
Los Angeles Times,
9 Feb. 2026
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Bad Bunny took us through tableaux of Latinx joy, with different expressions of beautiful hair in each vignette.—
Marci Robin,
Allure,
9 Feb. 2026
Cite this Entry
“Hairline.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/hairline. Accessed 10 Feb. 2026.
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