conscientiousness vs unconscientiousness

conscientiousness and unconscientiousness both are nouns.

Word	Noun	Adjective	Verb	Adverb
conscientiousness	Yes	No	No	No
unconscientiousness	Yes	No	No	No

conscientiousness (noun)	unconscientiousness (noun)
the quality of being in accord with the dictates of conscience	the quality of being willing to ignore the dictates of conscience
the trait of being painstaking and careful	the trait of not being painstaking or careful