Sub rosa and Underground

Sub rosa

Sub rosa adverb - In secret or covertly.

Underground and sub rosa are semantically related. In some cases you can use "Underground" instead an adjective phrase "Sub rosa".

Underground

Underground adjective - Undertaken or done so as to escape being observed or known by others.

Sub rosa and underground are semantically related. Sometimes you can use "Sub rosa" instead an adjective "Underground".
Cite this Source
Underground and Sub rosa. (2016). Retrieved 2026, July 29, from https://thesaurus.plus/related/sub_rosa/underground
Sub rosa & Underground. N.p., 2016. Web. 29 Jul. 2026. <https://thesaurus.plus/related/sub_rosa/underground>.
Underground or Sub rosa. 2016. Accessed July 29, 2026. https://thesaurus.plus/related/sub_rosa/underground.
Google Ngram Viewer shows how "sub rosa" and "underground" have occurred on timeline