shoddiness vs trashiness

shoddiness and trashiness both are nouns.

Word	Noun	Adjective	Verb	Adverb
shoddiness	Yes	No	No	No
trashiness	Yes	No	No	No

As nouns, shoddiness and trashiness are synonyms defined as:

shoddiness and trashiness: the quality of being cheaply imitative of something better

shoddiness (noun)	trashiness (noun)
the property of weakness by virtue of careless construction	the quality of being cheaply imitative of something better
the quality of being cheaply imitative of something better