diligence vs painstakingness

diligence and painstakingness both are nouns.

Word	Noun	Adjective	Verb	Adverb
diligence	Yes	No	No	No
painstakingness	Yes	No	No	No

As nouns, painstakingness is a hypernym of diligence; that is, painstakingness is a word with a broader meaning than diligence:

diligence: conscientiousness in paying proper attention to a task; giving the degree of care required in a given situation
painstakingness: the trait of being painstaking and careful

Other hypernyms of diligence include conscientiousness.

diligence (noun)	painstakingness (noun)
a diligent effort	the trait of being painstaking and careful
persevering determination to perform a task
conscientiousness in paying proper attention to a task; giving the degree of care required in a given situation