industry vs industriousness

industry and industriousness both are nouns.

Word	Noun	Adjective	Verb	Adverb
industry	Yes	No	No	No
industriousness	Yes	No	No	No

As nouns, industry and industriousness are synonyms defined as:

industry and industriousness: persevering determination to perform a task

Other synonyms of industry include diligence.

industry (noun)	industriousness (noun)
the organized action of making of goods and services for sale	persevering determination to perform a task
persevering determination to perform a task
the people or companies engaged in a particular kind of commercial enterprise