Practicability is a related term of smoothness.
As nouns the difference between practicability and smoothness
is that practicability is the state of being practicable; feasibility while smoothness is the condition of being smooth.
practicability
English
Noun
(practicabilities)
The state of being practicable; feasibility
Antonyms
* impracticability
smoothness
English
Noun
The condition of being smooth.
Antonyms
* roughness