SUBSURFACE Synonyms: 5 Similar and Opposite Words

subsurface

adjective

ˌsəb-ˈsər-fəs

Definition of subsurface

as in underground

being, situated, or operating beneath the surface of the earth a sandy wasteland that gave little hint of its subsurface wealth

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Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

Recent Examples of subsurface Evaluation protocols of subsurface measurements and training of all rig site personnel have improved the drilling economics of this geothermal project. — Ian Palmer, Forbes, 19 May 2022 Shallow pools of subsurface water froze and fractured the surface again and again. — Joshua Hawkins, BGR, 22 Apr. 2022 This is an important scientific mission tasked with searching for ice at the south pole and using a one-meter drill to prospect for subsurface samples. — Eric Berger, Ars Technica, 20 Apr. 2022 So Marco Mastrogiuseppe, a researcher on the Cassini team who had used instruments like RADAR to map subsurface water on Mars, decided to try something. — Liz Kruesi, Discover Magazine, 28 Oct. 2015 See All Example Sentences for subsurface

Recent Examples of Synonyms for subsurface

Adjective

These were voices—complaining, confiding, exasperated, distressed—that had not been heard before, as if the novel were a speaking tube cued to an underground rumble.

— Cynthia Zarin, Harpers Magazine, 4 Aug. 2026
Eden Aurelius is a relatively recent arrival to New York’s underground club scene, but her slim discography so far shows remarkable focus.

— Philip Sherburne, Pitchfork, 4 Aug. 2026

Definition of underground

Adjective

Table service is de rigueur at Red Frog, a subterranean speakeasy just off Avenida Liberdade.

— Condé Nast, Condé Nast Traveler, 3 Aug. 2026
By the end of the decade, the subterranean copper coaxial cable networks were on the verge of saturation, so some way had to be found to move all that telecommunications traffic in and out of central London.

— David Szondy August 01, New Atlas, 1 Aug. 2026

Definition of subterranean

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subsuming

subsurface

subteen

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“Subsurface.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/subsurface. Accessed 6 Aug. 2026.

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Synonyms of subsurface

adjective

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