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underground

see definition of underground
  • adjbelow the surface
  • adjsecret, subversive
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Synonyms for underground

adj below the surface
  • buried
  • covered
  • subterranean
  • below ground
  • in the recesses
  • subterrestrial
  • sunken
  • underfoot

Antonyms for underground

  • aboveground
  • authorized
  • condoned
  • ground
  • known
  • legal
  • public
  • sky
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.

More words related to underground

black market

noun. illegal commerce

clandestine

adjective. secret, sly

deep

adjective. extending very far, usually down

deeper

adjective. extending very far, usually down

fifth column

noun. secret or subversive group

hidden

adjective. unseen, secret
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.
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