Synset

marked by or paying little heed or attention
<adj.all>   freq. cnt.: 6 freq. cnt.: 4 freq. cnt.: 2

heedless

unheeding

sample sentences

"We have always known that heedless self-interest was bad morals
we know now that it is bad economics"--Franklin D. Roosevelt
"heedless of danger"
"heedless of the child's crying"