ultrasmooth

adjective
ul·​tra·​smooth | \ ˌəl-trə-ˈsmüṯẖ How to pronounce ultrasmooth (audio) \

Definition of ultrasmooth

: extremely or extraordinarily smooth an ultrasmooth surface the car's ultrasmooth shifting This mustard's ultrasmooth consistency led one taster to note that it seems whipped.Cook's Illustrated

First Known Use of ultrasmooth

1850, in the meaning defined above

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The first known use of ultrasmooth was in 1850

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