unmindful vs mindless

unmindful and mindless both are adjectives.

Word	Noun	Adjective	Verb	Adverb
unmindful	No	Yes	No	No
mindless	No	Yes	No	No

As adjectives, unmindful and mindless are synonyms defined as:

Other synonyms of unmindful include forgetful.

unmindful (adjective)	mindless (adjective)
not mindful or attentive	not mindful or attentive
(followed by `to' or `of') lacking conscious awareness of	devoid of intelligence or thought
	lacking the thinking capacity characteristic of a conscious being
	requiring little mental effort
	not marked by the use of reason