mindlessness vs inanity

mindlessness and inanity both are nouns.

Word	Noun	Adjective	Verb	Adverb
mindlessness	Yes	No	No	No
inanity	Yes	No	No	No

As nouns, mindlessness and inanity are synonyms defined as:

Other synonyms of mindlessness include pointlessness, senselessness, vacuity.

mindlessness (noun)	inanity (noun)
the trait of acting rashly and without prudence	total lack of meaning or ideas
total lack of meaning or ideas