unmindful, forgetful, deaf to, deaf, mindless, careful, inattentive, careless, indifferent, regardless, thoughtless, unlistening, unconcerned, unthinking, unobservant, reckless, heedless.
Then- still with clasped hands and smiling face- unheeding
the shout of horror that broke from those who beheld him- he leaped, and fell!
But the unheeding
face looked earnestly into the future.
Fit stores for science, Discontent Had pass'd unheeding
on the wild; And Nature had her wonders lent As things of gladness to the child!