adjective.Cruel, compassionless, discompassionate, as if having a heart made of stone.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adjective.
devoid of feeling for others
Word Usage
"It was not only a pleasure, but a duty to answer them, for the poor fellow was forlorn, and needed petting, since Jo persisted in being stonyhearted."