Perpendicular and Plumb

Perpendicular

Perpendicular adjective - Rising straight up.
Usage example: river rafters staring awestruck at the canyon's nearly perpendicular cliffs

Plumb is a synonym for perpendicular in upright topic. In some cases you can use "Plumb" instead the word "Perpendicular" as an adjective or a noun, when it comes to topics like straight, horizontal, rectilinear, at right angles to. popular alternative

Plumb

Plumb adjective - Rising straight up.
Usage example: the wall was not plumb, so everything else in the room was out of kilter

Perpendicular is a synonym for plumb in vertical topic. You can use "Perpendicular" instead the word "Plumb" as an adjective or a noun, if it concerns topics such as erect, straight, horizontal, rectilinear. popular alternative

Cite this Source
Plumb and Perpendicular. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/perpendicular/plumb
Perpendicular & Plumb. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/perpendicular/plumb>.
Plumb or Perpendicular. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/perpendicular/plumb.
Google Ngram Viewer shows how "perpendicular" and "plumb" have occurred on timeline