as in thick
being of a consistency that resists flow
viscous syrup that takes forever to pour from a narrow-neck bottle
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Recent Examples of viscous
Nikola Tesla’s bladeless turbine design relies on viscous drag rather than traditional blades to generate rotational motion.
—
Prabhat Ranjan Mishra, Interesting Engineering, 12 Jan. 2026
While heavy crude oil is what is predominantly being drilled for today, its viscous consistency and high levels of metals and sulfur mean extracting and refining this product is significantly more costly than its light crude counterpart.
—Sasha Rogelberg, Fortune, 5 Jan. 2026
And its cheap and viscous oil proved to be the perfect blend for American oil companies, which built their entire refinery infrastructure for Venezuela’s brand of crude.
—Elisabeth Buchwald, CNN Money, 4 Jan. 2026
At temperatures above 2,000 °F (1,093 °C), the radioactive compounds dissolve into the viscous glass, locking each element into a stable atomic matrix.
—New Atlas, 14 Dec. 2025
See All Example Sentences for viscous
Prabhat Ranjan Mishra, Interesting Engineering, 12 Jan. 2026
While heavy crude oil is what is predominantly being drilled for today, its viscous consistency and high levels of metals and sulfur mean extracting and refining this product is significantly more costly than its light crude counterpart.
—Sasha Rogelberg, Fortune, 5 Jan. 2026
And its cheap and viscous oil proved to be the perfect blend for American oil companies, which built their entire refinery infrastructure for Venezuela’s brand of crude.
—Elisabeth Buchwald, CNN Money, 4 Jan. 2026
At temperatures above 2,000 °F (1,093 °C), the radioactive compounds dissolve into the viscous glass, locking each element into a stable atomic matrix.
—New Atlas, 14 Dec. 2025
See All Example Sentences for viscous
Recent Examples of Synonyms for viscous
Adjective
-
Hours later, an explosion near the airport sent a thick plume of black smoke into the air – part of a fresh wave of Iranian strikes across the Middle East on Sunday following the death of Iran’s supreme leader in US-Israeli strikes.—
Laura Sharman,
CNN Money,
1 Mar. 2026
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The luxurious touch of velvet elevates any look, while the thick straps and flat sole give it a practical element.—
Ana Serrano,
Glamour,
28 Feb. 2026
Adjective
-
Taking an inventive approach can solve a sticky problem, while empathy keeps talks human and fair.—
Tarot.com,
Baltimore Sun,
3 Mar. 2026
-
Use yellow sticky cards to monitor for pests.—
Arricca Elin SanSone,
Southern Living,
3 Mar. 2026
Cite this Entry
“Viscous.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/viscous. Accessed 8 Mar. 2026.
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