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
Do not use to cover a ceiling Do not carry the flag flat — and things should not be carried on it. Sacbee.com, 3 July 2026 Data collection to refine the technology Large car carriers present specific aerodynamic challenges due to their tall, flat side profiles and susceptibility to lateral winds. Aman Tripathi, Interesting Engineering, 3 July 2026
Adverb
Perform 8–12 slow reps per side, focusing on keeping the lower back flat and breathing steadily. Jakob Roze, Health, 23 June 2026 Although the push to get Huang out of the race failed, the leftist’s campaign ended up falling flat, securing less than 3% of the vote in the primary. Noah Goldberg, Los Angeles Times, 9 June 2026
Noun
Break up a black-and-white outfit with juicy pops of color, like this creator’s apple-green flats or the lavender patent leather pair below. Ariel Wodarcyk, InStyle, 4 July 2026 The Billabong Waves Call Cotton Romper is an eye-catching deal for just $36, and it can be styled with sneakers, flats, or sandals to add impressive versatility to your suitcase. Merrell Readman, Travel + Leisure, 3 July 2026 See All Example Sentences for flat
Recent Examples of Synonyms for flat
Adjective
  • Miller’s exact dress from Debute London, which features a bustier top, lace trim, and a short hemline, is a great example of the details that turn the trend more contemporary, while still nodding to its nostalgic, charming nature.
    Irene Richardson, InStyle, 3 July 2026
  • Essence is a founder standing in front of tens of thousands of the exact customers a corporate channel would have charged a fortune to reach and gatekept anyway.
    Jasmine Browley, Forbes.com, 2 July 2026
Adjective
  • Far fewer people stay responsible when the work turns boring, unclear or inconvenient, and that's precisely when ownership surfaces.
    Somdutta Singh, Forbes.com, 2 July 2026
  • Monocultures can be boring, but on the flipside, a huge collection of individual species looks like a busy bowl of potpourri.
    Luke Miller, Better Homes & Gardens, 29 June 2026
Adjective
  • Morton kosher salt and blend until mostly smooth with no whole pieces of corn left, about 4 minutes.
    Shilpa Uskokovic, Bon Appetit Magazine, 1 July 2026
  • Directions In a large bowl whisk together vanilla pudding mix, whole milk, sour cream, vanilla extract, and salt in a large bowl until slightly thickened and smooth, about 1 minute.
    Sarah Martens, Better Homes & Gardens, 1 July 2026
Adjective
  • For a stable, repo-local script, that critique holds, and wrapping every small command in a gateway adds surface area no one needs.
    Janakiram MSV, Forbes.com, 6 July 2026
  • The four children and three adult victims are in stable condition, Tisch said.
    Karissa Waddick, USA Today, 5 July 2026
Adjective
  • As for the volunteers, the goal is simple—help someone stay safe before the heat turns into an emergency.
    Marissa Sulek, CBS News, 1 July 2026
  • Evidence for at-home tools is thinner than for professional manual drainage, but the simplest options can offer mild circulation and surface-lymph support at a low price.
    Allison Palmer, Miami Herald, 30 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
  • But together, the whole is blander than the sum of its parts—a subtle banality humans can often implicitly sense.
    Sam Macdonald, Scientific American, 29 June 2026
  • The smallest pieces will turn a bland outfit into an Instagram-worthy moment.
    Emma Greene, InStyle, 26 June 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.
    STAR-TELEGRAM WEATHER BOT, Fort Worth Star-Telegram, 5 July 2026
  • Sprinkle the entire rug with a thin layer of baking soda and wait 20 minutes.
    Brandee Gruener, Southern Living, 5 July 2026

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Cite this Entry

“Flat.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/flat. Accessed 6 Jul. 2026.

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