Both Uses

heed
in
A Curtain of Green
(Auto-generated)

Now the intense light like a tweezers picked out her clumsy, small figure in its old pair of men's overalls rolled up at the sleeves and trousers, separated it from the thick leaves, and made it look strange and yellow as she worked with a hoe-over-vigorous, disreputable, and heedless.†

heedless = ignorant or ignoring; or not following advice

standard suffix: The suffix "-less" in heedless means without. This is the same pattern you see in words like fearless, homeless, and endless.
To the neighbors gazing down from their upstairs windows it had the appearance of a sort of jungle, in which the slight, heedless form of its owner daily lost itself.†
*

Definitions:

(1) (heed)
pay close attention to; or to do what is suggested -- especially with regard to a warning or other advice
(2) (meaning too rare to warrant focus)