soundless

¹ American  

[sound-lis] / ˈsaʊnd lɪs /

adjective

1. without sound; silent; quiet.

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soundless ² American  

[sound-lis] / ˈsaʊnd lɪs /

adjective

1. unfathomable; very deep.

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soundless ¹ British  

/ ˈsaʊndlɪs /

adjective

1. extremely still or silent

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soundless ² British  

/ ˈsaʊndlɪs /

adjective

1. poetic extremely deep

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Other Word Forms

• soundlessly adverb
• soundlessness noun

Etymology

Origin of soundless¹

First recorded in 1595–1605; sound ¹ + -less

Origin of soundless²

First recorded in 1580–90; sound ³ + -less

Example Sentences

Despite our many requests, the Florida Department of Corrections has not gotten him a hearing aid that doesn’t beep loudly in his ears, so he prefers to stay in his own, soundless world.

From Salon • Aug. 17, 2025

While a friend told Iranian state television that she hit her head on the station’s platform, the soundless footage aired by the broadcaster from outside of the car is blocked by a bystander.

From Washington Times • Oct. 6, 2023

Though, even that detail drove me absolutely insane — the soundless snapping?

From Los Angeles Times • Aug. 25, 2023

With outstretched arms, dancers skimmed across the sand like gliding birds, soundless against the pressing wind and somehow soaring without actual wings.

From New York Times • Aug. 23, 2023

The sails sagged limp and soundless, and the Dolphin rolled sickeningly in midstream.

From "The Witch of Blackbird Pond" by Elizabeth George Speare