Functionless
Vestigial and functionless are semantically related. In some cases you can use "Vestigial" instead an adjective "Functionless".
Vestigial
Vestigial adjective - Not fully developed in mature animals.
Functionless and vestigial are semantically related. You can use "Functionless" instead an adjective "Vestigial".
Mutual synonyms
Cite this Source
Vestigial and Functionless. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/functionless/vestigial
Functionless & Vestigial. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/functionless/vestigial>.
Vestigial or Functionless. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/functionless/vestigial.
Google Ngram Viewer shows how "functionless" and "vestigial" have occurred on timeline