n. The quality of being callous; emotional hardheartedness or indifference.
the GNU version of the Collaborative International Dictionary of English
n. lack of passion or feeling.
The Century Dictionary and Cyclopedia
n. The state of being callous.
n. Insensibility of mind or heart.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. devoid of passion or feeling; hardheartedness
Word Usage
"Until that time when the meaning of it all shall flash out upon the world, the race will be hidebound in callousness and in faint-hearted melancholy."