1.VerbTo have the capacity (to do something); to be able to bring oneself to do something, especially something cruel or hardhearted. .mw-parser-output .object-usage-tag{font-style:italic}.mw-parser-output .deprecated{color:var(--wikt-palette-grey-lime-8,olivedrab)}[with to (+ infinitive)]
"I didn't have the heart to tell him we wouldn't ever come back to see him."