harden one's heart
Definition of harden one's heart
◆If you harden your heart or if something hardens your heart, you stop having kind or friendly feelings for someone. She hardened her heart against him.
Word by Word Definitions
: to make hard or harder
: to confirm in disposition, feelings, or action
: to make callous
Seen and Heard
What made you want to look up harden one's heart? Please tell us where you read or heard it (including the quote, if possible).