[ noun ]
an absence of concern for the welfare of others
<noun.feeling>

Heartless \Heart"less\, a.
1. Without a heart.

You have left me heartless; mine is in your bosom.
--J. Webster.

2. Destitute of courage; spiritless; despondent.

Heartless they fought, and quitted soon their
ground. --Dryden.

Heartless and melancholy. --W. Irwing.

3. Destitute of feeling or affection; unsympathetic; cruel.
``The heartless parasites.'' --Byron. -- {Heart"less*ly},
adv. -- {Heart"less*ness}, n.