mindfulness vs heedfulness

mindfulness and heedfulness both are nouns.

Word	Noun	Adjective	Verb	Adverb
mindfulness	Yes	No	No	No
heedfulness	Yes	No	No	No

As nouns, mindfulness and heedfulness are synonyms defined as:

mindfulness and heedfulness: the trait of staying aware of (paying close attention to) your responsibilities

mindfulness (noun)	heedfulness (noun)
the trait of staying aware of (paying close attention to) your responsibilities	the trait of staying aware of (paying close attention to) your responsibilities