Synonyms for underground
ˈʌn dərˈgraʊnd; -ˌgraʊndun·der·ground

WiktionaryRate these synonyms:0.0 / 0 votes

1. undergroundnoun

   Synonyms:
   Tube

2. undergroundnoun

   Below the ground.

   There is an underground tunnel that takes you across the river.

   Synonyms:
   metro, Tube, subterranean, ground, below, subway, métro

3. undergroundadjective

   A movement or organisation of people who resist political convention.

   These criminals operate through an underground network.

   Synonyms:
   avant-garde, counter-culture, on the quiet, in secret, clandestinely, resistance, hush-hush, secret, clandestine, hidden

4. undergroundnoun

   A movement or organisation of people who resist artistic convention.

   Synonyms:
   avant-garde, unconventional

Princeton's WordNetRate these synonyms:0.0 / 0 votes

1. underground, resistancenoun

   a secret group organized to overthrow a government or occupation force

   Synonyms:
   resistance, resistivity, immunity, ohmic resistance, subway, impedance, resistor, electrical resistance, metro, opposition, subway system, electric resistance, tube

   Antonyms:
   surface, open, overhead, overt

2. metro, tube, underground, subway system, subwayadjective

   an electric railway operating below the surface of the ground (usually in a city)

   "in Paris the subway system is called the `metro' and in London it is called the `tube' or the `underground'"

   Synonyms:
   resistance, metro, electron tube, subway, thermionic vacuum tube, pipe, tubing, vacuum tube, tube-shaped structure, thermionic valve, underpass, subway system, thermionic tube, tube

   Antonyms:
   overhead, open, overt, surface

3. belowground, undergroundadjective

   under the level of the ground

   "belowground storage areas"; "underground caverns"

   Synonyms:
   hole-and-corner(a), clandestine, cloak-and-dagger, belowground, hush-hush, undercover, surreptitious, hugger-mugger, secret

   Antonyms:
   overt, surface, open, overhead

4. clandestine, cloak-and-dagger, hole-and-corner(a), hugger-mugger, hush-hush, secret, surreptitious, undercover, undergroundadverb

   conducted with or marked by hidden aims or methods

   "clandestine intelligence operations"; "cloak-and-dagger activities behind enemy lines"; "hole-and-corner intrigue"; "secret missions"; "a secret agent"; "secret sales of arms"; "surreptitious mobilization of troops"; "an undercover investigation"; "underground resistance"

   Antonyms:
   overt, surface, open, overhead

5. undergroundadverb

   in or into hiding or secret operation

   "the organization was driven underground"

   Antonyms:
   overhead, surface, overt, open

6. undergroundadverb

   beneath the surface of the earth

   "water flowing underground"

   Antonyms:
   overt, open, overhead, surface

Editors ContributionRate these synonyms:5.0 / 1 vote

1. catacombs

   Submitted by anonymous on April 2, 2020  

Dictionary of English SynonymesRate these synonyms:0.0 / 0 votes

1. undergroundadjective

   Synonyms:
   subterranean, subterraneous

Synonyms, Antonyms & Associated WordsRate these synonyms:0.0 / 0 votes

1. undergroundadjective

   Synonyms:
   subterranean, subterraneous, subterrene, subterrestrial

PPDB, the paraphrase databaseRate these paraphrases:0.0 / 0 votes

1. List of paraphrases for "underground":

   subterranean, subsurface, subway, below-ground, belowground, metro, clandestine, groundwater, ground, basement, illegal, hiding, surreptitious, secret, underpass, sub-surface

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How to use underground in a sentence?

1. Waleed Shahid:

   It reminds me of some of the attacks against Barack Obama for being connected to the Weather Underground and Black nationalists and Palestinian activists -- that View Trump was some sort of radical, it wasn't effective then and I don't think it will be effective now.

2. Prince Ali:

   It is a bunker, three floors underground, and for me that is not the vision that one should have for that organization, there is a problem where minutes are not published. And even when they are received they are not accurate, in my opinion.

3. Jian Zhao:

   [It's a] new way of using underground space on a larger scale.

4. Mark Hansford:

   It's absolutely a growth area, all the businesses we talk to anticipate growth in construction of ever deeper underground spaces. In London a growing number of properties are three or four stories deep. With so little space there has to be new ways to make use of it.

5. Tim Morgan:

   John Wilkes Booth Booth stayed nearby in a pine thicket, they were helped by the Confederate underground. He learned here that his act was almost universally condemned.