Adjective belowground has 2 senses
  1. belowground, underground - under the level of the ground; "belowground storage areas"; "underground caverns"
    Antonym: overhead (indirect, via surface, subsurface)
    Antonym: surface (indirect, via subsurface, overhead)
  2. belowground - underneath the ground; "most of his friends are now belowground"
    Antonym:
    unburied (indirect, via buried)
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