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
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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
Emily Longeretta, Variety, 3 Sep. 2025
His clinic is renowned for providing the best care, specializing in natural hairline design and minimally invasive FUE and DHI treatments.
—Matt Emma, USA Today, 27 Aug. 2025
It can be used along the scalp, hairline, and part lines—not just the face.
—Lauren Dana Ellman, Travel + Leisure, 23 Aug. 2025
Ticks are small, blood-sucking parasites that latch onto humans and animals, often hiding in skin folds, hairlines or even eyelashes.
—Daniella Gray, MSNBC Newsweek, 23 Aug. 2025
See All Example Sentences for hairline
Noun
Pelphrey leaned into the look, with Ingelsby’s encouragement, especially because of his roots — the East Coast ones, not his hairline.
—Emily Longeretta, Variety, 3 Sep. 2025
His clinic is renowned for providing the best care, specializing in natural hairline design and minimally invasive FUE and DHI treatments.
—Matt Emma, USA Today, 27 Aug. 2025
It can be used along the scalp, hairline, and part lines—not just the face.
—Lauren Dana Ellman, Travel + Leisure, 23 Aug. 2025
Ticks are small, blood-sucking parasites that latch onto humans and animals, often hiding in skin folds, hairlines or even eyelashes.
—Daniella Gray, MSNBC Newsweek, 23 Aug. 2025
See All Example Sentences for hairline
Recent Examples of Synonyms for hairline
Adjective
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Vogue’s Favorite Gold Necklaces Featured in this article With an endless array of iterations—from thin, barely-there metallic strands to bolder, statement-making chains that instantly command attention—gold chain necklaces are some of the best gold jewelry pieces to add to your collection.—
Samantha Solomon,
Vogue,
18 Sep. 2025
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Maternal health remains under-researched compared to other therapeutic areas, and the pharmaceutical pipeline is thin—just 91 compounds in development, versus thousands for areas like neurology or dermatology.—
Shelley Stewart III,
Forbes.com,
18 Sep. 2025
Adjective
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The subtle side snap buttons leading down to the slit provide detail without being distracting, and the pointelle knit offers enough stretch and texture to hug your curves in all the right places.—
Lane Nieset,
Travel + Leisure,
20 Sep. 2025
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Chisholm took a subtle shot at the Marlins, noting what was holding him back.—
Aaliyan Mohammed,
MSNBC Newsweek,
20 Sep. 2025
Adjective
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Researchers have successfully used a quantum algorithm to solve a complex century-old mathematical problem long considered impossible for even the most powerful conventional supercomputers.—
Aman Tripathi,
Interesting Engineering,
11 Sep. 2025
-
Jose Salazar is in his second year at Davis pursuing a doctorate degree in mathematical atmospheric sciences.—
Graham Womack,
Sacbee.com,
11 Sep. 2025
Noun
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Even a basic and small telescope, such as a 2-inch refractor, can get you a glimpse of the rings.—
Jamie Carter,
Forbes.com,
20 Sep. 2025
-
Most notable interior change is a 27-inch OLED display incorporating gauges and infotainment controls.—
Mark Phelan,
USA Today,
20 Sep. 2025
Adjective
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Students have a narrow window to unlock access to training that could dramatically shape their post-grad trajectory.—
Cheryl Robinson,
Forbes.com,
14 Sep. 2025
-
For decades, OPOs have been bulky systems with narrow ranges.—
Neetika Walter,
Interesting Engineering,
13 Sep. 2025
Adjective
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When human activities like pollution disrupt habitats, these delicate host–parasite relationships can break down.—
Melissa Cristina Márquez,
Forbes.com,
19 Sep. 2025
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This delicate balance is precisely what makes the platform so powerful.—
Neetika Walter,
Interesting Engineering,
19 Sep. 2025
Adjective
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Customer service and tech support will provide faster resolutions and more accurate answers.—
Hugh Cameron,
MSNBC Newsweek,
17 Sep. 2025
-
That volume of data is impractical to fit theoretical models to deliver large-scale, accurate predictions.—
Robert Lea,
Space.com,
16 Sep. 2025
Noun
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Inspired by the Japanese treat both in formula and texture, the Iota Supermochi Body Exfoliator+ contains soothing sweet rice water and exfoliating red bean extract—alongside ingredients like lactic acid, sea salt, and urea—to gently resurface your skin from the neck down.—
Sophia Panych,
Allure,
16 Sep. 2025
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Winter Wools Nothing feels sharper or warmer than a funnel-neck coat made of warm wool.—
Andrea Zendejas,
Vogue,
16 Sep. 2025
Cite this Entry
“Hairline.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/hairline. Accessed 22 Sep. 2025.
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