1
as in speed
a high rate of movement or performance
the amazing fastness with which the boy took his shower had us wondering if he'd used any water
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Antonyms & Near Antonyms
2
as in stronghold
a structure or place from which one can resist attack
the guerillas retreated to their network of hidden fastnesses deep within the mountains
Synonyms & Similar Words
3
as in loyalty
adherence to something to which one is bound by a pledge or duty
his uncompromising fastness to the cause of freedom was beyond question
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Antonyms & Near Antonyms
Example Sentences
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Recent Examples of fastness
Like the pressing, the hard work mentality and fastness of transition for example.
—
Andy Jones, New York Times, 29 May 2025
Editors and contributors compare dozens of sets and look for qualities such as softness, durability, breathability, color fastness, and how well the linens launder and withstand wear.
—Yelena Moroz Alpert, Architectural Digest, 16 May 2025
The system ensures good wet-rubbing and dry-rubbing fastness and softness on all kinds of fabrics.
—Angela Velasquez, Sourcing Journal, 30 Dec. 2024
The system ensures good wet-rubbing and dry-rubbing fastness and softness on all kinds of fabrics.
—Angela Velasquez, Sourcing Journal, 30 Dec. 2024
Tat-Fung’s Downtown collection of blue, black and gray fabrics outperform conventional denim in color fastness, according to Tim Huesemann, the mill’s sales director.
—Angela Velasquez, Sourcing Journal, 22 Oct. 2024
This advancement enables dyeing with Basic dyes, promising enhanced dye uptake and superior wash fastness compared to traditional Reactive dyes.
—Sj Studio, Sourcing Journal, 13 Sep. 2024
The Neutral Ground had cowboys (or Cow Boys), Indians, cavalry attacks and rescues, and secret woodland fastnesses known only to the canniest frontiersman.
—Ian Frazier, The New Yorker, 15 July 2024
The technology uses specific formaldehyde-free agents to enhance the dyeing process of raw garments, resulting in a bright and deep indigo color, improving wash and rubbing fastness, and increasing lightfastness and levelness.
—Andrea Onate, WWD, 12 June 2024
Andy Jones, New York Times, 29 May 2025
Editors and contributors compare dozens of sets and look for qualities such as softness, durability, breathability, color fastness, and how well the linens launder and withstand wear.
—Yelena Moroz Alpert, Architectural Digest, 16 May 2025
The system ensures good wet-rubbing and dry-rubbing fastness and softness on all kinds of fabrics.
—Angela Velasquez, Sourcing Journal, 30 Dec. 2024
The system ensures good wet-rubbing and dry-rubbing fastness and softness on all kinds of fabrics.
—Angela Velasquez, Sourcing Journal, 30 Dec. 2024
Tat-Fung’s Downtown collection of blue, black and gray fabrics outperform conventional denim in color fastness, according to Tim Huesemann, the mill’s sales director.
—Angela Velasquez, Sourcing Journal, 22 Oct. 2024
This advancement enables dyeing with Basic dyes, promising enhanced dye uptake and superior wash fastness compared to traditional Reactive dyes.
—Sj Studio, Sourcing Journal, 13 Sep. 2024
The Neutral Ground had cowboys (or Cow Boys), Indians, cavalry attacks and rescues, and secret woodland fastnesses known only to the canniest frontiersman.
—Ian Frazier, The New Yorker, 15 July 2024
The technology uses specific formaldehyde-free agents to enhance the dyeing process of raw garments, resulting in a bright and deep indigo color, improving wash and rubbing fastness, and increasing lightfastness and levelness.
—Andrea Onate, WWD, 12 June 2024
Recent Examples of Synonyms for fastness
Noun
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Some schools are innovating at speed, but whether the majority are ready to do that remains to be seen.—
Dan Fitzpatrick,
Forbes.com,
7 Aug. 2025
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But Edwards also thinks that the record’s longevity boils down to his unique combination of speed and lightness down the runway, reminiscent of a stone skipping gracefully across a pond.—
George Ramsay,
CNN Money,
7 Aug. 2025
Noun
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Meanwhile, Republican strongholds such as Ohio, Indiana, Florida and Missouri are seen as having greater potential to expand their representation through redistricting.—
Martha McHardy,
MSNBC Newsweek,
16 Aug. 2025
-
Events and rallies are also scheduled in dozens of other states, both in Democratic strongholds and Republican-majority states.—
Zoe Sottile,
CNN Money,
16 Aug. 2025
Noun
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One hospitality research study found that emotional engagement is one of the top three drivers of guest loyalty in luxury hotels, outranking even location and amenities.—
Jeetendr Sehdev,
Forbes.com,
13 Aug. 2025
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That said, my loyalty is to the people of District 6.—
Mary Ramsey,
Charlotte Observer,
13 Aug. 2025
Noun
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Sasaki spent his first months in a Dodgers uniform prioritizing his fastball velocity, which had dropped from 2023 to 2024 and became the focal point of his conversations with interested clubs this winter.—
Fabian Ardaya,
New York Times,
6 Aug. 2025
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Although his fastball velocity ticked up marginally in his last start before the trade, the pitch sat at a season-low 90.8 mph Monday.—
Meghan Montemurro,
Chicago Tribune,
5 Aug. 2025
Noun
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In real life, the high-tech Utah fortress from the streaming film Mountainhead is available as a $60,000-a-night rental in Utah, and Yellowstone’s iconic Montana ranch lets guests live out their Western drama fantasies.—
Abby Montanez,
Robb Report,
13 Aug. 2025
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The new Carnage maze coming to Magic Mountain this Halloween season will take visitors inside a fortress ruled by a villainous clown named Carnage.—
Brady MacDonald,
Oc Register,
11 Aug. 2025
Noun
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Our allegiance to the song and to the fans is bigger than our fear of anything outside of that.—
Mackenzie Cummings-Grady,
Billboard,
7 Aug. 2025
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Win McNamee—Getty Images Blackburn’s allegiance to Trump As mentioned, the MAGA Republican has a strong connection to the President and served on the executive committee of his transition team during his first presidential term.—
Solcyré Burga,
Time,
6 Aug. 2025
Noun
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Fetterman's approval in the Democratic bastion of Philadelphia is underwater, with 43 percent approving and 48 percent disapproving of him, according to Lee.—
Andrew Stanton,
MSNBC Newsweek,
25 June 2025
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Connecticut has been a bastion of punk rock since the punk movement first began in the 1970s.—
Christopher Arnott,
Hartford Courant,
27 July 2025
Noun
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Her dedication to producing tangible improvements in the realm of social justice is evidenced by her previous positions, most recently as the director of the center for social justice at the Urban League of Southwestern Ohio.—
Grace Tucker,
The Enquirer,
7 Aug. 2025
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One of the biggest reasons why both SET and Parke have cemented themselves as must-have brands is their dedication to fostering their communities.—
Sarah Boyd,
Forbes.com,
6 Aug. 2025
Cite this Entry
“Fastness.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/fastness. Accessed 19 Aug. 2025.
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