FIBER Synonyms: 73 Similar and Opposite Words

fiber

noun

ˈfī-bər

Definition of fiber

as in backbone

the strength of mind that enables a person to endure pain or hardship a person of lesser fiber would not have spoken out against such an injustice

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Antonyms & Near Antonyms

as in wire

a thin, flexible structure that resembles a hair the fibers found on the victim's body came from a carpet in the suspect's home

Synonyms & Similar Words

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

Recent Examples of fiber Ventile, developed for the British military in 1943, is a cotton weave that leverages the fabric’s desire to expand when wet; when densely woven, the damp fibers actually create a natural elemental barrier—no weatherproofing chemicals required. — Daniel Varghese, Time, 15 Oct. 2026 Carbon composite manufacturing involves laying down carbon fiber layers in a mold, then curing, or heating, the material to bind the fibers together. — Stephen Clark, ArsTechnica, 15 Oct. 2026 The study authors calculated a 23 percent lower cancer risk for each additional 300 milligrams (mg) of daily calcium and a 28 percent lower risk for each additional 10 g of daily fiber. — Emily Kay Votruba, EverydayHealth.com, 15 Oct. 2026 Some types, such as almonds, are especially rich in soluble fiber. — Sarah Garone, HEALTH, 15 Oct. 2026 See All Example Sentences for fiber

Recent Examples of Synonyms for fiber

Noun

Zelenskyy said that Kyiv was investigating sudden speed restrictions on Ukraine’s use of Starshield, the military-grade version of SpaceX’s Starlink satellite internet service, which is the backbone of Ukraine’s drone operations and communication.

— ABC News, ABC News, 17 Oct. 2026
Network is the backbone of Ukraine’s drone operations Starshield is the backbone of Ukraine’s drone operations.

— Hanna Arhirova, Los Angeles Times, 16 Oct. 2026

Definition of backbone

Noun

What happens now Nearly two years after that first $10 million wire, the scandal has left a strange legacy.

— Christopher Spata, Miami Herald, 17 Oct. 2026
The singer arrived on the red carpet wearing a black sculptural ensemble with an elaborate wire and loop headpiece and a lofty pair of Saint Laurent platform heels.

— Karla Rodriguez, Footwear News, 16 Oct. 2026

Definition of wire

Noun

The future will not be shaped only by the power of our technology or our weapons, but by the quality of our conversations—and the courage of the choices that follow.

— Halla Tómasdóttir, Time, 16 Oct. 2026
But, beyond the wall-to-wall coverage and sensational headlines, is a story about the incredible courage, devotion, and strength that Natalee’s mother, Beth, showed in the face of unimaginable loss.

— Peter White, Deadline, 15 Oct. 2026

Definition of courage

Noun

How do two middle-class lads in ratty threads, who might very well have both been played by Robert Pattinson, fast-track an appointment with Jesus?

— Gabriel Szatan, Pitchfork, 18 Oct. 2026
One of the main threads of the book that drew Duffield to directing the adaptation was the father-son relationship at its core; his own son was 4 at the time of the set visit.

— Dessi Gomez, Deadline, 16 Oct. 2026

Definition of thread

Noun

And the protesters’ grit, wit, inventiveness, and fearlessness have dented Modi’s authority like nothing else has in the past 12 years.

— Pratap Bhanu Mehta, Foreign Affairs, 15 Oct. 2026
Marcus, however, showed a lot of grit and guts for a lad who was not expected to triumph.

— Lars Brandle, Billboard, 14 Oct. 2026

Definition of grit

Noun

The hair accessories blended effortlessly with her texture, folding between the body of her hair thanks to celebrity hair architect Igor Rosales.

— Kaleigh Werner, Footwear News, 13 Oct. 2026
Each channel measures roughly half the width of a human hair in depth.

— Aamir Khollam, Interesting Engineering, 13 Oct. 2026

Definition of hair

Noun

Under that gorgeous screen, the watch is packed with 32GB of storage, tons of sports modes to track your activities, and a myriad of other metrics, including overall stamina, sleep, VO2 max, recovery insights, and even wrist power.

— Kelsey Fogarty, PC Magazine, 6 Oct. 2026
Ambitious mukbang-ers eager to prove their gastronomic stamina descended on Red Lobster locations across the country to consume absurd quantities of shrimp.

— Nick Lichtenberg, Fortune, 1 Oct. 2026

Definition of stamina

Noun

Each color change requires it to unload one filament, load another and purge the remaining molten plastic.

— New Atlas, New Atlas, 17 Oct. 2026
Unifi and 10 other North and Central American yarn producers launched YarnProof, an initiative using FibreTrace technology to embed an invisible, permanent tracer into polyester filament yarn during extrusion.

— Alexandra Harrell, Footwear News, 13 Oct. 2026

Definition of filament

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fibbing

fiber

fibers

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“Fiber.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/fiber. Accessed 20 Oct. 2026.

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Synonyms of fiber

noun

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