underground

adjective · adverb · noun · verbB2

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Tính từ

adjective
Comparative
more undergroundmost underground
Superlative
under groundunder-ground
  1. 1.

    (not comparable)Below the ground; below the surface of the Earth.

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

    Đồng nghĩa: subterranean, hypogean

  2. 2.

    (figuratively)(figurative) Hidden, furtive, secretive.

    These criminals operate through an underground network.

    Đồng nghĩa: covered, concealed, dark, dern, hidden, invisible, inward, latent, nondisplayed, obfuscated, obfuscatory, obscure, obscured, occluded, occulted, private, recondite, secluded, secret, secreted, silent, snug, tect, unapparent, underground, undisclosed, veiled, abstruse, behind the scenes, catlike, backroom, stealth, clandestine, cloak-and-dagger, concealed, confidential, covert, deep-laid, dern, disguised, furtive, huggermugger, hush-hush, inconspicuous, incognito, low profile, lurksome, lurky, mousy, obfuscated, off-the-books, on the down-low, on the sly, secret, secretive, slinky, sly, sneaky, stealthy, sub rosa, surreptitious, under-the-table, under the radar, under wraps, undercover, underground, unperceived

  3. 3.

    (figuratively)(figurative) Of or relating to an art forms (such as music) or subculture that is outside the mainstream, especially one that is unofficial and hidden from the authorities.

    underground music

    Đồng nghĩa: alternative, unconventional

Trạng từ

adverb
Comparative
more undergroundmost underground
Superlative
under groundunder-ground
  1. 1.

    Below the ground.

    The tunnel goes underground at this point.

    Đồng nghĩa: below ground

  2. 2.

    Secretly.

    Đồng nghĩa: clandestinely, in secret, on the quiet

Danh từ

noun
Plural noun:
undergroundsunder groundunder-ground
  1. 1.

    (geography) The regions beneath the surface of the earth, both natural (eg. caves) and man-made (eg. mines).

  2. 2.

    (British)(chiefly British) Synonym of subway: a railway that is under the ground.

    London Underground

    Đồng nghĩa: underground railway, subway

  3. 3.

    (with definite article)A movement or organization of people who resist political convention.

    the French underground during World War II

    Đồng nghĩa: resistance

  4. 4.

    (with definite article)A movement or organization of people who resist artistic convention.

    Đồng nghĩa: avant-garde, counterculture

Động từ

verb
V_es/s
undergrounds
V_ing/Gerund
undergrounding
V_ed/pp
undergroundedunder ground
  1. 1.

    To route electricity distribution cables underground.

  2. 2.

    (form of, participle, past)simple past and past participle of undergrind

Từ liên quan

Đồng nghĩa

Trái nghĩa

Cùng gốc / liên quan

nonundergroundsemiundergrounddeep underground military basego undergroundunderground handballunderground handpassunderground muttonunderground folkunderground peopleUnderground Railroadunderground railwayWeather Underground

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Nguồn gốc từ

under ground

Nguồn dữ liệu: freedict, wiktionary · cập nhật 16/8/2026

Định nghĩa và phiên âm từ Wiktionary / dictionaryapi.dev (CC BY-SA).