IPA: /ˈhɜrtfəli/
KK: /hɜrtfəli/
In a way that causes pain or distress to someone.
She spoke hurtfully, making him feel bad about himself.
Hurtfully → It is formed from "hurt" (from Old English *hyrtan*, meaning to injure or cause pain) and "-fully" (meaning in a manner full of). The word "hurtfully" means in a manner that causes injury or pain.
Think of causing pain ('hurt') in a way that is 'full of' that pain ('-fully'). This helps you remember that 'hurtfully' means to do something in a way that injures or causes emotional pain.