Empty
Empty adjective - Lacking contents that could or should be present.
On the surface and empty are semantically related In some cases you can use "On the surface" instead an adjective "Empty".
On the surface
Empty and on the surface are semantically related in detail topic. Sometimes you can use "Empty" instead an adjective phrase "On the surface", if it concerns topics such as superficial.
Mutual synonyms
Both terms in one sentence
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Dig down far enough, you fall into empty space and land back on the surface.
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Not only does Lux itself qualify, but we later learn that the world on the surface is nearly empty, being only populated by ghostly half-humans that have given up on living but are too tired to seek death.
Source: Anime / Texhnolyze
Cite this Source
On the surface and Empty. (2016). Retrieved 2026, August 07, from https://thesaurus.plus/related/empty/on_the_surface
Empty & On the surface. N.p., 2016. Web. 07 Aug. 2026. <https://thesaurus.plus/related/empty/on_the_surface>.
On the surface or Empty. 2016. Accessed August 07, 2026. https://thesaurus.plus/related/empty/on_the_surface.