subterranean

sub·ter·ra·ne·an  (sbt-rn-n)

adj.

1. Situated or operating beneath the earth's surface; underground.

2. Hidden; secret: subterranean motives for murder.

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[Latin subterrneus : sub-, sub- + terra, earth; see ters- in Indo-European roots.]

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subter·rane·an·ly adv.

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subterranean

Adjective

1. found or operating below the surface of the earth

2. existing or working in a concealed or mysterious way: the resistance movement worked largely by subterranean methods [Latin sub beneath + terra earth]

Thesaurus

Adj.	1.	subterranean - being or operating under the surface of the earth; "subterranean passages"; "a subsurface flow of water" subterraneous subsurface - beneath the surface; "subsurface materials of the moon"
	2.	subterranean - lying beyond what is openly revealed or avowed (especially being kept in the background or deliberately concealed); "subterranean motives for murder"; "looked too closely for an ulterior purpose in all knowledge"- Bertrand Russell ulterior, subterraneous covert - secret or hidden; not openly practiced or engaged in or shown or avowed; "covert actions by the CIA"; "covert funding for the rebels"

Translations

subterranean [sʌbtəˈreɪnɪən] adj → subterráneo

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subterranean [sʌbtəˈreɪnɪən] adj → souterrain(e)

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subterranean [sʌbtəˈreɪnɪən] adj → unterirdisch

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subterranean [sʌbtəˈreɪnɪən] adj → sotterraneo/a