In perpetuum
Solid and in perpetuum are semantically related. In some cases you can use "Solid" instead an adverb phrase "In perpetuum".
Solid
Solid adjective - Based on sound reasoning or information.
In perpetuum and solid are semantically related. Sometimes you can use "In perpetuum" instead an adverb "Solid".
Cite this Source
Solid and In perpetuum. (2016). Retrieved 2026, July 28, from https://thesaurus.plus/related/in_perpetuum/solid
In perpetuum & Solid. N.p., 2016. Web. 28 Jul. 2026. <https://thesaurus.plus/related/in_perpetuum/solid>.
Solid or In perpetuum. 2016. Accessed July 28, 2026. https://thesaurus.plus/related/in_perpetuum/solid.
Google Ngram Viewer shows how "in perpetuum" and "solid" have occurred on timeline