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Definition of flatnext
1
as in exact
being neither more nor less than a certain amount, number, or extent industrial growth has been a flat two percent for each of the last four quarters

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Antonyms & Near Antonyms

2
as in boring
causing weariness, restlessness, or lack of interest a flat portrayal of Benjamin Franklin in the new TV series

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Antonyms & Near Antonyms

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flat

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adverb

flat

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noun

chiefly British

Synonym Chooser

How does the adjective flat contrast with its synonyms?

Some common synonyms of flat are even, level, plane, and smooth. While all these words mean "having a surface without bends, curves, or irregularities," flat applies to a surface devoid of noticeable curvatures, prominences, or depressions.

the work surface must be flat

When would even be a good substitute for flat?

In some situations, the words even and flat are roughly equivalent. However, even applies to a surface that is noticeably flat or level or to a line that is observably straight.

trim the hedge so it is even

When is it sensible to use level instead of flat?

The words level and flat can be used in similar contexts, but level applies to a horizontal surface that lies on a line parallel with the horizon.

the vast prairies are nearly level

Where would plane be a reasonable alternative to flat?

While in some cases nearly identical to flat, plane applies to any real or imaginary flat surface in which a straight line between any two points on it lies wholly within that surface.

the plane sides of a crystal

When is smooth a more appropriate choice than flat?

The words smooth and flat are synonyms, but do differ in nuance. Specifically, smooth applies especially to a polished surface free of irregularities.

a smooth skating rink

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 flat
Adjective
The plan leverages Verizon’s 5G/4G LTE infrastructure and simplifies service with flat monthly pricing and no hidden fees. Roxanne Downer, USA Today, 6 Nov. 2025 Support your arm with a flat surface, and place the cuff at the level of your heart. Mark Gurarie, Verywell Health, 6 Nov. 2025
Adverb
The former was shell-shocked by one of the worst offensive lines imaginable in 2021 and eventually flat-lined. Sean Keeler, Denver Post, 20 Oct. 2025 MiuMiu practically declared the satin ballet flat the it-fall shoe back in 2022, sending models down the runway in various color combos of their dainty flats with warm chunky socks. Emily Tannenbaum, Glamour, 18 Oct. 2025
Noun
The following year, The Row launched its mesh flats, popularizing the beloved silhouette. Kelsey Stewart, Footwear News, 5 Nov. 2025 Although Sean Lennon did dispute an ending where the Greenwich flat is demolished. Whitney Friedlander, Variety, 5 Nov. 2025 See All Example Sentences for flat
Recent Examples of Synonyms for flat
Adjective
  • Although the venue’s exact location within Victoria Park is yet to be finalized, early studies by an an independent panel suggested that the stadium would occupy between 12% and 13% of its land.
    Oscar Holland, CNN Money, 7 Jan. 2026
  • The data below doesn’t include exact employee counts and is based on the most recent reports.
    Nick Wooten, Dallas Morning News, 6 Jan. 2026
Adjective
  • Yes, the rich women went to Sedona on Sutton’s private plane, but before that there were a few scenes back in boring old Los Angeles.
    Brian Moylan, Vulture, 9 Jan. 2026
  • Disease prevention should be boring, routine, expected, and easy to access.
    Uché Blackstock, Time, 8 Jan. 2026
Adjective
  • Polk said the astronaut is stable but that diagnostic uncertainty in microgravity prompted NASA to err on the side of bringing the crew member back to Earth.
    Greg Wehner, FOXNews.com, 9 Jan. 2026
  • Treaties assume shared values, stable circumstances, and mutual benefit.
    Daniel Ross Goodman, The Washington Examiner, 9 Jan. 2026
Adjective
  • According to Bruce Blair, a former Air Force launch officer and nuclear policy expert, between 1962 and the mid-1970s the most powerful digits on the globe were simple – eight zeros.
    Charlotte Reck, CNN Money, 9 Nov. 2025
  • That something as simple as a COVID vaccine might improve survival in cancer patients receiving standard immunotherapy has taken oncologists by surprise — in a good way.
    Lisa Jarvis, Twin Cities, 8 Nov. 2025
Adjective
  • The long-wearing formula sets to a semi-matte finish that resists oil and humidity, too.
    Christa Joanna Lee, Allure, 26 Nov. 2025
  • The 42 mm case wears well thanks to ergonomically short lugs and restrained proportions, on a semi-matte alligator strap with a flamboyant yellow lining.
    Thor Svaboe, Robb Report, 12 Nov. 2025
Adjective
  • Democrat Gray Davis, to name a recent example, had an extensive background in government and politics and a bland demeanor that suggested his first name was also a fitting adjective.
    Los Angeles Times, Los Angeles Times, 4 Jan. 2026
  • Is there an unwritten rule about being a bland professional and not showing any personality?
    Kevin Kurz, New York Times, 3 Jan. 2026
Adjective
  • The water pressure then causes the vehicle to rise and slide on a thin layer of water between the tires and the road, making the driver lose control.
    NC Weather Bot, Charlotte Observer, 10 Jan. 2026
  • Yimobra Memory Foam Bath Mat, $9 with Prime The bath mat is made from memory foam that feels plush underfoot and cushions each step, unlike thin cotton mats.
    Maggie Horton, PEOPLE, 10 Jan. 2026
Adverb
  • More than once, Coon and Smallwood are completely nude on stage, as Agnes and Peter lay hidden parts of their psyche bare.
    Shania Russell, Entertainment Weekly, 9 Jan. 2026
  • Before cleaning any type of stovetop, be sure the burners are turned off, and every surface is completely cool to the touch.
    Mary Marlowe Leverette, The Spruce, 8 Jan. 2026

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Cite this Entry

“Flat.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/flat. Accessed 11 Jan. 2026.

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