Smoothness (probability theory) definition

(1) The quality of being free from errors or interruptions

"The five-speed manual gearbox is smoothness personified"

(2) The quality of having a level and even surface

"The water was a glassy smoothness"

"The weather system of the Pacific is determined by the uninterrupted smoothness of the ocean"

(3) The quality of being bland and gracious or ingratiating in manner

(4) A texture without roughness; smooth to the touch

"Admiring the slim smoothness of her thighs"

"Some artists prefer the smoothness of a board"

(5) Powerful and effective language

"His eloquence attracted a large congregation"

"Fluency in spoken and written English is essential"

"His oily smoothness concealed his guilt from the police"