Underground
Underground adjective - Undertaken or done so as to escape being observed or known by others.
Usually down and underground are semantically related. In some cases you can use "Usually down" instead an adjective "Underground".
Usually down
Underground and usually down are semantically related. Sometimes you can use "Underground" instead an adjective phrase "Usually down".
Mutual synonyms
Cite this Source
Usually down and Underground. (2016). Retrieved 2026, August 09, from https://thesaurus.plus/related/underground/usually_down
Underground & Usually down. N.p., 2016. Web. 09 Aug. 2026. <https://thesaurus.plus/related/underground/usually_down>.
Usually down or Underground. 2016. Accessed August 09, 2026. https://thesaurus.plus/related/underground/usually_down.
Google Ngram Viewer shows how "underground" and "usually down" have occurred on timeline