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underground

adjective

Synonyms and Antonyms of underground

1 undertaken or done so as to escape being observed or known by others

  • an underground operation to smuggle ancient artifacts out of the country
Synonyms of underground

backstairs, behind-the-scenes, clandestine, covert, furtive, hole-and-corner, hugger-mugger, hush-hush, private, privy, secret, sneak, sneaking, sneaky, stealth, stealthy, surreptitious, undercover, underhand, underhanded
Words Related to underground

back-channel, closed-door, off-the-books, off-the-record

classified, confidential, restricted, top secret, undisclosed

concealed, hidden, secreted, subterranean, unadvertised, unexposed
Near Antonyms of underground

acknowledged, avowed

aboveboard, straightforward, unconcealed, undisguised

unclassified, unrestricted

clear, evident, manifest, obvious, patent, plain
Antonyms of underground

open, overt, public

2 being, situated, or operating beneath the surface of the earth

  • an underground shopping mall that is part of the city's subway system
Synonyms of underground

belowground, subsurface, subterranean
Antonyms of underground

aboveground, surface

underground

noun

Synonyms and Antonyms of underground

a secret organization in a conquered country fighting against enemy forces

  • joined the underground while still a teenager
Synonyms of underground

resistance
Words Related to underground

cabal, conspiracy

Learn More about underground

  1. See words that rhyme with underground Dictionary: Definition of underground Spanish Central: Translation of underground Nglish: Translation of underground for Spanish speakers Britannica English: Translation of underground for Arabic speakers Britannica.com: Encyclopedia article about underground

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