Synonyms of horizontal

horizontal

adjective

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

• flat
• smooth
• prone
• recumbent
• reclining
• level
• supine
• flush
• prostrate
• plane
• reposing
• even

Dissimilar Words

• vertical
• erect
• standing
• upright
• raised
• upstanding

Example Sentences

Recent Examples of horizontal

The goal was to create labs that were horizontal in structure—meaning they aren’t created or dictated by leadership but by professors—and that incorporated not just teachers and students but alumni as well. — Shanti Escalante-De Mattei, ARTnews.com, 3 Aug. 2026

While the horizontal space in a small garden is defined and limited, the vertical space offers great planting potential. — Megan Hughes, Better Homes & Gardens, 2 Aug. 2026

The actual Texas state flag was established in 1839, with one vertical blue stripe featuring a Lone Star and two horizontal stripes of white and red. — Ella Gonzales, Fort Worth Star-Telegram, 31 July 2026

For much of the past few seasons, sweepers — essentially, bigger sliders with massive horizontal movement — were en vogue. — Cody Stavenhagen, New York Times, 31 July 2026