ad. In an unfeeling manner; without concern or regard for feelings.
The Century Dictionary and Cyclopedia
In an unfeeling or cruel manner.
Without perception or comprehension.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
ad. without compassionate feelings
ad. in a callous way
Word Usage
"In place of the conventional image of Olmsted as idealistic social reformer, he portrays an imperious and disagreeable workaholic, who repeatedly transplanted his family as unfeelingly as he would any sapling."