We found one dictionary that defines the word not have the heart to do:

Miscellaneous (1 matching dictionary)

1. not have the heart to do: Idioms

▸ Words similar to not have the heart to do ▸ Usage examples for not have the heart to do ▸ Idioms related to not have the heart to do ▸ Wikipedia articles (New!) ▸ Words that often appear near not have the heart to do ▸ Rhymes of not have the heart to do ▸ Invented words related to not have the heart to do