Heartless/ˈhɑːrtləs/ Definition 1 of 2Pro Tip 1/3Cruel Actions Used to describe actions that lack compassion and are intentionally hurtful. Canceling the charity event was a heartless move. Pro Tip 2/3Negative Emotion Conveys a strong negative emotional response, implying a moral judgment. Ignoring the plight of the poor is heartless. Pro Tip 3/3Not Literal 'Heartless' doesn't mean lacking a physical heart, but lacking empathy or humanity. Her heartless laughter at the accident shocked everyone.