roughness vs rowdiness

roughness and rowdiness both are nouns.

Word	Noun	Adjective	Verb	Adverb
roughness	Yes	No	No	No
rowdiness	Yes	No	No	No

As nouns, roughness and rowdiness are synonyms defined as:

Other synonyms of roughness include disorderliness, rowdyism.

roughness (noun)	rowdiness (noun)
harsh or severe speech or behavior	rowdy behavior
a texture of a surface or edge that is not smooth but is irregular and uneven
the quality of being harsh or rough or grating to the senses
an unpolished unrefined quality
the formation of small pits in a surface as a consequence of corrosion
used of the sea during inclement or stormy weather
rowdy behavior