1
: designed to conform to all shapes and sizes
one-size-fits-all T-shirts
One-size-fits-all gloves by Nolan Glove have gripper palms that are perfect for holding on …—Andrea Skinner
If you are small of ear, you may find that those one-size-fits-all earbuds simply don't fit.—David Pogue
2
: covering, used for, or applying to all cases or individuals without modification
This past spring, The New England Journal of Medicine published a series of articles by well-known geneticists who expressed frustration and disappointment at their inability to hit upon a one-size-fits-all genetic explanation for common diseases, which had seemed within their grasp only a few years ago.—Matthew Stremlau
Levine says the old, one-size-fits-all approach allows too many youngsters to fall through the cracks—kids who may be perfectly intelligent but struggle in school.—Barbara Kantrowitz et al.
Skeptics worry that patients are too varied and doctors too accustomed to providing unlimited care for a one-size-fits-all payment policy.—Catherine Arnst
Where once there was the one-size-fits-all fixed-rate 30-year mortgage, now there is a bewildering assortment of home-financing arrangements …—Consumer Reports

Examples of one-size-fits-all in a Sentence

Recent Examples on the Web
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.
Inventory what currently crowds your counters and cabinets — lids, wraps, measuring tools — and shop for a door rack built around those specific items rather than a one-size-fits-all unit. — Lauren Jarvis-Gibson, Kansas City Star, 1 Oct. 2026 As an independent agency, Triangle Health Advisors can help clients compare available coverage options rather than taking a one-size-fits-all approach. — Karen Koehler, Charlotte Observer, 25 Sep. 2026 The Las Vegas Raiders star spoke out about the Chicago Bears quarterback’s latest setback, a minor hamstring strain, and is making clear that reactions to injuries are not one-size-fits-all. — Anna Lazarus Caplan, PEOPLE, 24 Sep. 2026 While there is no one-size-fits-all approach to cooling factories, technology isn’t the barrier, said Jason Judd, the ILR Global Labor Institute’s executive director and another study co-author. — Jasmin Malik Chua, Footwear News, 23 Sep. 2026 See All Example Sentences for one-size-fits-all

Word History

First Known Use

1905, in the meaning defined at sense 1

Time Traveler
The first known use of one-size-fits-all was in 1905

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Cite this Entry

“One-size-fits-all.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/one-size-fits-all. Accessed 10 Oct. 2026.

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