heedlessness vs heedfulness

heedlessness and heedfulness both are nouns.

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

heedlessness (noun)	heedfulness (noun)
the trait of forgetting or ignoring your responsibilities	the trait of staying aware of (paying close attention to) your responsibilities
the trait of acting rashly and without prudence
a lack of attentiveness (as to children or helpless people)