inmost

Farthest within; innermost.

Furthest within; remotest from the boundary, surface, or external part: as, the inmost recesses of a forest.

Deepest; most interior or intimate; most real or vital.

The most interior part.

Deepest within; farthest from the surface or external part; innermost.

The very deepest within; farthest from the surface or external part; innermost

being deepest within the self

situated or occurring farthest within