FIBER Synonyms: 73 Similar and Opposite Words

fiber

noun

ˈfī-bər

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

Synonyms & Similar Words

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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

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Recent Examples of fiber In athletes, fat stored in muscle — predominantly in muscle fiber droplets — is an important energy reserve that the body taps into when a person exerts an extraordinary amount of energy. —

Kaitlin Sullivan, NBC news, 14 Apr. 2026 Eating fruits, vegetables, fatty fish, nuts, seeds, legumes, and whole grains provides you with the vitamins, minerals, healthy fats, protein, and fiber needed to maintain a strong and vibrant cardiovascular system. —

Colleen Doherty, Verywell Health, 14 Apr. 2026 Since Lenzing Group launched TENCEL™ Lyocell – HV100 last year, the new fiber type has quickly been adopted by denim mills and brands. —

Sj Guest Editorial, Footwear News, 14 Apr. 2026 Functional drinks can support gut health with probiotics and prebiotic fibers. —

Lindsey Desoto, Health, 14 Apr. 2026 See All Example Sentences for fiber

Recent Examples of Synonyms for fiber

Noun

Materials with high entanglement could become the backbone of future quantum computers or ultra-secure communication networks.

— Rupendra Brahambhatt, Interesting Engineering, 11 Apr. 2026
Data centers, the backbone of the AI economy, are among the most energy-intensive assets in the world.

— Pandu Sjahrir, Fortune, 11 Apr. 2026