IPA: /ˈstoʊniˌhɑːrtɪd/
KK: /ˈstoʊniˌhɑrtɪd/
Lacking compassion or warmth; emotionally cold and unfeeling.
Despite the sad story, he remained stonyhearted and did not show any emotion.
Stonyhearted is formed from "stony" (from Old English "stanig", meaning resembling stone) and "hearted" (from "heart", meaning the organ of emotion or feeling, with the suffix "-ed" indicating a characteristic). The word describes someone who is emotionally cold or unfeeling, as if their heart is made of stone.
Think of someone whose heart is 'like stone' ('stony') — this helps you remember that 'stonyhearted' means emotionally unfeeling.