Definition of perpendicularnext

Synonym Chooser

How does the adjective perpendicular differ from other similar words?

The words plumb and vertical are common synonyms of perpendicular. While all three words mean "being at right angles to a base line," perpendicular may stress the straightness of a line making a right angle with any other line, not necessarily a horizontal one.

the parallel bars are perpendicular to the support posts

When is plumb a more appropriate choice than perpendicular?

While in some cases nearly identical to perpendicular, plumb stresses an exact verticality determined (as with a plumb line) by earth's gravity.

make sure that the wall is plumb

When is it sensible to use vertical instead of perpendicular?

While the synonyms vertical and perpendicular are close in meaning, vertical suggests a line or direction rising straight upward toward a zenith.

the side of the cliff is almost vertical

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 perpendicular How to Survive a Rip Current Unlike waves that push toward the beach, rip currents move perpendicular to the shoreline, carrying water, and anything floating in it, out to sea. Anna Skinner, MSNBC Newsweek, 13 May 2026 Folding out horizontally to be a side sleeper (rather than perpendicular to the wall as is traditional), this full-sized bed frame is slim without sacrificing comfort. Julia Harrison, Architectural Digest, 5 May 2026 To quantify spatial variations, peak emission frequencies are translated into radial distances and compared against a polynomial baseline to derive ( r_\perp ), a measure of perpendicular displacement. Bojan Stojkovski, Interesting Engineering, 3 May 2026 Advanced Park technology can even assist with parallel or perpendicular parking. Sponsored Content, Denver Post, 2 May 2026 See All Example Sentences for perpendicular
Recent Examples of Synonyms for perpendicular
Adjective
  • Thanks to this vertical ecosystem, stretching from the Apple Watch through iPhone and iPad to the Mac, Apple’s retail pricing has more flexibility than a traditional smartphone manufacturer.
    Ewan Spence, Forbes.com, 4 July 2026
  • Bradley Barcola provides a vertical threat with his speed while Olise is the creator that knits everything together.
    Graham Ruthven, New York Times, 4 July 2026
Adjective
  • In an April assessment, Control Risks already treated it as a standing planning assumption, which reprices redundancy, war-risk insurance and evacuation planning rather than compliance programmes.
    Güney Yıldız, Forbes.com, 1 July 2026
  • Audience members then gave the star a standing ovation.
    Dave Quinn, PEOPLE, 27 June 2026
Adjective
  • My posture is erect, gait easy, expression flat, uninterested.
    Danielle Parker, CBS News, 21 May 2026
  • Plants add stunning texture and shining color to the garden with metallic, lavender-blue bracts surrounding flowers that stand erect on purple stems.
    Kim Toscano, Southern Living, 10 May 2026

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Cite this Entry

“Perpendicular.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/perpendicular. Accessed 5 Jul. 2026.

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