Antonyms of adj aboveground

1 sense of aboveground

Sense 1
aboveground -- (on or above the surface of the ground; "aboveground nuclear testing"; "surface instruments for detecting oil deposits"; "surface transportation")

INDIRECT (VIA overhead, surface) -> subsurface -- (beneath the surface; "subsurface materials of the moon")
INDIRECT (VIA surface, subsurface) -> overhead -- (located or originating from above; "an overhead crossing")

Similarity of adj aboveground

1 sense of aboveground

Sense 1
aboveground -- (on or above the surface of the ground; "aboveground nuclear testing"; "surface instruments for detecting oil deposits"; "surface transportation")
       => surface (vs. subsurface) (vs. overhead) -- (on the surface; "surface materials of the moon")