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

Wiktionary(0.00 / 0 votes)Rate these synonyms:

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 WordNet(0.00 / 0 votes)Rate these synonyms:

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 Contribution(5.00 / 1 vote)Rate these synonyms:

1. catacombs

   Submitted by anonymous on April 2, 2020  

Dictionary of English Synonymes(0.00 / 0 votes)Rate these synonyms:

1. undergroundadjective

   Synonyms:
   subterranean, subterraneous

Synonyms, Antonyms & Associated Words(0.00 / 0 votes)Rate these synonyms:

1. undergroundadjective

   Synonyms:
   subterranean, subterraneous, subterrene, subterrestrial

PPDB, the paraphrase database(0.00 / 0 votes)Rate these paraphrases:

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. Virginia Tech:

   There's never a ribbon cutting ceremony when you fix an underground, dirty water pipe, and that's why we typically invest more in bridges and airports and other things that can be a showcase, but the danger from these pipes is real.

2. Richard Pryor:

   There's a lot more hypocrisy than before. Racism has gone back underground.

3. Mike Ryan:

   That has created the perfect storm that has allowed virus to get away from us and go on underground.

4. Francis Lawrence:

   It was actually quite difficult to find environments that felt like they were underground, that didn't have a lot of doors, that didn't have a lot of windows and a lot of vents and things like that, and this felt like it could be underground with the supports and the vaults and all of that.

5. Michael Akam:

   Strigamia live underground and have no eyes, so it's not surprising that many of the genes for light receptors are missing, but they behave as if they are hiding from the light. They must have some alternative way of detecting when they are exposed.