HORIZONTAL Synonyms: 18 Similar and Opposite Words

horizontal

adjective

Definition of horizontal

as in flat

parallel to the ground She reclined the chair to a horizontal position. The line on the graph was nearly horizontal, indicating little growth over the fiscal year.

Related Words

Relevance

Dissimilar Words

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 horizontal The length of the horizontal part of the faucet arm is also critical. — Tim Carter, Hartford Courant, 22 Aug. 2026 The list of productivity tools, both horizontal and vertical, runs into the many hundreds today. — Sanjot Malhi, Fortune, 21 Aug. 2026 Understanding the vertical and horizontal links in a value chain may identify adjacent products, partnership possibilities, acquisition targets or new markets. — Akolisa Ufodike, Forbes.com, 20 Aug. 2026 Phase 2 is underway and consists of structural engineers and contractors installing horizontal braces. — Adam Thompson, CBS News, 18 Aug. 2026 See All Example Sentences for horizontal

Recent Examples of Synonyms for horizontal

flat

Adjective

The technique creates extra grip while maintaining a shiny exterior and preventing the bun from looking flat.

— Marci Robin, Allure, 21 Aug. 2026
To keep the arrays from catching the wind like sails, engineers mount the solar panels at much flatter tilt angles than those used in typical ground installations.

— Aman Tripathi, Interesting Engineering, 21 Aug. 2026

Definition of flat

Browse Nearby Words

horizons

horizontal

horn

See all Nearby Words

Cite this Entry

Style

“Horizontal.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/horizontal. Accessed 29 Aug. 2026.

Copy Citation

Synonyms of horizontal

adjective

Example Sentences

Browse Nearby Words

Cite this Entry

More from Merriam-Webster on horizontal

More from Merriam-Webster

Word of the Day

kith

Popular in Grammar & Usage

A Who’s Who Regarding ‘Who’s’ and ‘Whose’

'A' or 'an'? What about before 'h'? An Indefinite Article Guide

Why is '-ed' sometimes pronounced at the end of a word?

What's the difference between 'fascism' and 'socialism'?

Commonly Misspelled Words

Popular in Wordplay

Ye Olde Nincompoop: Old-Fashioned Words for 'Stupid'

14 Phobias You Probably Haven't Heard Of

Even More Words That Sound Like Insults But Aren't

The Words of the Week - Aug. 28

Why do we say 'break a leg'?

Popular

A Who’s Who Regarding ‘Who’s’ and ‘Whose’

Ye Olde Nincompoop: Old-Fashioned Words for 'Stupid'

14 Phobias You Probably Haven't Heard Of

Games & Quizzes