Diagonal and Plumb
Opposite meaning words
Diagonal
Diagonal adjective - Running in a slanting direction.
Usage example: the diagonal design ran up the wall all the way from the lower left to the upper right-hand corner
Nearby Word: diagonally
Plumb
Plumb adjective - Rising straight up.
Usage example: the wall was not plumb, so everything else in the room was out of kilter
Cite this Source
Plumb and Diagonal. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/diagonal/plumb
Diagonal & Plumb. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/diagonal/plumb>.
Plumb or Diagonal. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/diagonal/plumb.
Google Ngram Viewer shows how "diagonal" and "plumb" have occurred on timeline