Sunken and Undermost

Sunken

Sunken adjective - Curved inward.

Undermost and sunken are semantically related. In some cases you can use "Undermost" instead an adjective "Sunken".

Undermost

Undermost adjective - Of, relating to, or located at the bottom.
Usage example: the undermost layer of the mattress filling should provide firm back support

Sunken and undermost are semantically related. Sometimes you can use "Sunken" instead an adjective "Undermost".
Cite this Source
Undermost and Sunken. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/sunken/undermost
Sunken & Undermost. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/sunken/undermost>.
Undermost or Sunken. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/sunken/undermost.
Google Ngram Viewer shows how "sunken" and "undermost" have occurred on timeline