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to harden one's heart

to harden one's heart

1 7.7
Become less kind or caring after being hurt
  • idiom
  • Informal
translation icon : endurecer el corazón
  • If we harden our hearts now, then we are despising the mercy and love of God; we are treading God's love underfoot.

Examples

  • I understand your anguish, my son... but you must not let it harden your heart.

  • Morgan could see that hardening his heart was exactly what he was doing.

    Fiction book (1996)
  • You must not harden your heart, brother.

  • You have to harden your heart.

  • You then have a choice: learn from your mistake, or harden your heart.

    Blog text (3)
  • To do this, we had to harden our hearts against the suffering outside.

  • Addy had told him not to harden his heart, and the words had been good.

    Fiction book (1996)
  • We harden our hearts and grow callous.

  • It is not possible for many of us to harden our hearts enough to become blind to the suffering of the children.

    Blog text (1)
  • After experiencing betrayal, it's easy to harden one's heart and shut others out.

Antonyms

Show kindness to someone who needs help

How Uncaring

to harden one's heart
  • Informal
1 7.7
coldness
7 3.2

Surface Forms

harden one's heart infinitive
hardened one's heart past participle
hardening one's heart present participle
hardens one's heart third person singular

Morphology

harden + one's + heart

The meaning is directly derivable from combining 'harden' (to make hard) with 'heart' (the emotional center): to make one's emotions 'hard' is transparently to become less compassionate or emotionally responsive. This metaphorical but regular compositional pattern is common cross-linguistically and would be understandable to a B1 learner who knows the constituents.

Etymology

The idiom harden one's heart comes from the picture of a heart turning hard like stone. If your heart is hard, you cannot feel or care, so the phrase means 'to stop feeling or caring'.