subterraneous

S1U1B3T1E1R1R1A1N1E1O1U1S1

adjective

Subterranean.

Scrabble 15

Meanings

adjectivesubterraneous (not comparable)
  1. not comparableSubterranean.

    [S]he recollected a ſubterraneous paſſage which led from the vaults of the caſtle to the church of St. Nicholas.

    1764 December 24 (indicated as 1765), Onuphrio Muralto, translated by William Marshal [pseudonyms; Horace Walpole], chapter I, in The Castle of Otranto, […], London: […] Tho[mas] Lownds […], →OCLC, page 22
    3 more examples

    The Indians of the Orellanna, also, tell of horrible noises heard occasionally in the Paraguaxo, […] Others have endeavored to account for these discharges of "mountain artillery" on humbler principles; attributing them […] to the disengagement of hydrogen, produced by subterraneous beds of coal in a state of ignition.

    1836 October, Washington Irving, chapter XXVI, in Astoria, or Anecdotes of an Enterprise beyond the Rocky Mountains. […], volume I, Philadelphia, Pa.: [Henry Charles] Carey, [Isaac] Lea, & Blanchard, →OCLC, page 254

    A low rumbling sound was heard; a subterraneous hum; and then all held their breaths; as bedraggled with trailing ropes, and harpoons, and lances, a vast form shot lengthwise, but obliquely from the sea.

    1851 November 14, Herman Melville, Moby-Dick; or, The Whale, 1st American edition, New York, N.Y.: Harper & Brothers; London: Richard Bentley, →OCLC

    The 3-mile underground railway—or "subterraneous wagonway"—was begun about 1770 by Christopher Bedlington, and was therefore commonly known as Kitty's Drift.

    1944 September and October, Charles E. Lee, “An Ancient Underground Railway”, in Railway Magazine, page 275

Synonyms & antonyms

adjectivebeing or operating under the surface of the earth

adjectivelying beyond what is openly revealed or avowed (especially being kept in the background or deliberately concealed)

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

Adapted borrowing of Latin subterrāneus + -ous. Doublet of subterrane.

Full word history & related roots →
Cite this entry
APA

subterraneous. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/subterraneous

MLA

“subterraneous.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/subterraneous. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “subterraneous,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/subterraneous.

Source: subterraneous on Wiktionary, CC BY-SA 4.0.