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subterranean

see definition of subterranean
  • adjhidden, underground
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Synonyms for subterranean

adj hidden, underground
  • below ground
  • buried
  • covered
  • covert
  • hush-hush
  • on the QT
  • private
  • secret
  • subterrestrial
  • subversive
  • sunken
  • under wraps
  • underfoot

More words related to subterranean

deep

adjective. extending very far, usually down
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.
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