ultraquiet

adjective
ul·​tra·​qui·​et | \ ˌəl-trə-ˈkwī-ət How to pronounce ultraquiet (audio) \

Definition of ultraquiet

: producing significantly less sound than is usual or expected : extremely or extraordinarily quiet ultraquiet engines

First Known Use of ultraquiet

1863, in the meaning defined above

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The first known use of ultraquiet was in 1863

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Cite this Entry

“Ultraquiet.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ultraquiet. Accessed 25 Jun. 2021.

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