'Underneath' definitions:

Definition of 'underneath'

(from WordNet)
adverb
On the lower or downward side; on the underside of; "a chest of drawers all scratched underneath"
adverb
Under or below an object or a surface; at a lower place or level; directly beneath; "we could see the original painting underneath"; "a house with a good foundation underneath"

Definition of 'Underneath'

From: GCIDE
  • Underneath \Un`der*neath"\, adv. [OE. undirnepe. See Under, and Beneath.] Beneath; below; in a lower place; under; as, a channel underneath the soil. [1913 Webster]
  • Or sullen mole, that runneth underneath. --Milton. [1913 Webster]

Definition of 'Underneath'

From: GCIDE
  • Underneath \Un`der*neath"\, prep. Under; beneath; below. [1913 Webster]
  • Underneath this stone lie As much beauty as could die. --B. Jonson. [1913 Webster]

Synonyms of 'underneath'

From: Moby Thesaurus