Back side
Posterior
Posterior noun - The part of the body upon which someone sits.
Back side and posterior are semantically related. You can use "Back side" instead a noun "Posterior".
Nearby Words: posteriority, posteriorly
Mutual synonyms
Cite this Source
Posterior and Back side. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/back_side/posterior
Back side & Posterior. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/back_side/posterior>.
Posterior or Back side. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/back_side/posterior.
Google Ngram Viewer shows how "back side" and "posterior" have occurred on timeline