1) Inhumed 2) Interred 3) Subsurface 4) Underground 1) No longer living 2) Subsurface 3) Subterranean 4) Under the level of the ground 5) Underground 6) Underneath the ground 
[adj] - under the level of the ground 2. [adj] - underneath the ground
underground adjective under the level of the ground; `belowground storage areas`; `underground caverns`
situated beneath the surface of the earth; subterranean. · no longer living; buried, as in a cemetery (usually used predicatively): All those who might have known about the incident are now belowground.