Empty
Empty adjective - Lacking contents that could or should be present.
Not serious and empty are semantically related In some cases you can use "Not serious" instead an adjective "Empty".
Not serious
Empty and not serious are semantically related in worthless topic. Sometimes you can use "Empty" instead an adjective phrase "Not serious".
Mutual synonyms
Related pairs
Cite this Source
Not serious and Empty. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/empty/not_serious
Empty & Not serious. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/empty/not_serious>.
Not serious or Empty. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/empty/not_serious.
Google Ngram Viewer shows how "empty" and "not serious" have occurred on timeline