smoothness vs eloquence

smoothness and eloquence both are nouns.

Word	Noun	Adjective	Verb	Adverb
smoothness	Yes	No	No	No
eloquence	Yes	No	No	No

As nouns, smoothness and eloquence are synonyms defined as:

Other synonyms of smoothness include fluency.

smoothness (noun)	eloquence (noun)
a texture without roughness; smooth to the touch	powerful and effective language
the quality of having a level and even surface
the quality of being free from errors or interruptions
the quality of being bland and gracious or ingratiating in manner
powerful and effective language