flat 1 of 3

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

Synonyms & Similar Words

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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

Synonyms & Similar Words

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
This is a slight amendment from PVH’s original full-year 2026 guidance, which anticipated that revenues would remain flat or increase slightly compared to 2025. Madeleine Schulz, Vogue, 4 June 2026 CovidTaxRefunds charges a flat fee to evaluate and prepare your penalty and interest refund claim. Medora Lee, USA Today, 4 June 2026
Adverb
Built from corrugated cardboard with a water-resistant coating, the drone is lightweight, inexpensive, and can be shipped flat-packed for rapid assembly in about five minutes. Jijo Malayil, Interesting Engineering, 29 Apr. 2026 Spanning more than 4,000 square feet, the flat-roofed, single-story house is designed to frame its countryside setting, with floor-to-ceiling sliding glass doors opening onto terraces and wide rural views. Abby Montanez, Robb Report, 29 Apr. 2026
Noun
Add an understated top with flats and a modern blazer for the office, or opt for a sleeveless blouse and slingback heels for a perfectly polished finish. Caley Sturgill, Southern Living, 27 May 2026 Stocks also jumped after the report, with the S&P 500 and Nasdaq entering positive territory and the Dow flat. Sarah Min,lisa Kailai Han, CNBC, 27 May 2026 See All Example Sentences for flat
Recent Examples of Synonyms for flat
Adjective
  • Many women are simultaneously navigating chronic stress, poor sleep, caregiving responsibilities, financial pressure, nonstop digital stimulation, and relentless productivity expectations during the exact years hormonal shifts begin intensifying.
    Meggen Harris, Forbes.com, 31 May 2026
  • That, however, doesn’t capture the exact torque, force and grip required for a robot hand to work flawlessly.
    Los Angeles Times, Los Angeles Times, 31 May 2026
Adjective
  • If your summer wardrobe is feeling a bit boring or outdated, don’t fret — Amazon just added tons of new styles to its sale section, and my top picks are all going for $10 or less.
    Emily Weaver, PEOPLE, 29 May 2026
  • Finally, the institution must be financially boring.
    Christos Korgan, San Diego Union-Tribune, 29 May 2026
Adjective
  • These advanced technologies ensure the router maintains a high data throughput and more stable performance, even when in a congested network.
    Mark Sparrow, Forbes.com, 31 May 2026
  • An outcome would be more stable and adaptable behavior of the rover in granular environments.
    Leonard David, Space.com, 31 May 2026
Adjective
  • The actor, 39, pleaded guilty to three misdemeanor counts of simple battery in a Louisiana criminal court Wednesday, June 3, according to records obtained by USA TODAY.
    Liza Esquibias, USA Today, 3 June 2026
  • At the time, the New Orleans Police Department confirmed its officers charged LaBeouf with two counts of simple battery for allegedly assaulting two men near a bar in the French Quarter.
    Alexandra Del Rosario, Los Angeles Times, 3 June 2026
Adjective
  • Its 85-inch QLED display features a highly matte anti-glare screen, so your art and movies look lifelike without annoying reflections.
    Juhi Wadia, PC Magazine, 11 Mar. 2026
  • The long-wearing formula sets to a semi-matte finish that resists oil and humidity, too.
    Christa Joanna Lee, Allure, 26 Nov. 2025
Adjective
  • The California electorate has typically favored experience over youth, and favored bland and boring over razzle and dazzle.
    Los Angeles Times, Los Angeles Times, 3 June 2026
  • Gone are the days of cardboard bread and bland baked goods.
    Michele Laufik, Martha Stewart, 29 May 2026
Adjective
  • Said was clean-shaven, with close-cropped, graying hair and thin, rectangular glasses.
    Bozorgmehr Sharafedin, The Atlantic, 1 June 2026
  • Expect body hair to thin, disappear, Alpinize.
    Sandra Cisneros, New Yorker, 1 June 2026
Adverb
  • Renwick’s belief that athleticwear designers were for too long a time absorbed in making men’s lives easier — and efforts to reverse this pattern by turning its gaze towards women — completely revolutionized the industry, which is why the brand is a no-brainer addition to this article.
    Stacia Datskovska, Footwear News, 4 June 2026
  • Healey, a former two-term attorney general, is completely disregarding public safety by her reckless rhetoric and actions – all to win another election.
    Joe Battenfeld, Boston Herald, 4 June 2026

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Cite this Entry

“Flat.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/flat. Accessed 7 Jun. 2026.

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