An insensitive person doesn't care about other people's feelings and isn't understanding.
When we say someone is being insensitive, it usually means they've done something that hurt or offended others without thinking twice. This can happen when you're not aware of how your words or actions affect the people around you. For example, making a joke about someone's serious problem without considering how they might feel is insensitive behavior. Or maybe someone talks about their own problems all day without asking anyone else if they need to talk too – that's being insensitive as well.
Expressing or feeling little or no concern, care, compassion, or consideration for the feelings, emotions, sentiments, or concerns of other people; inconsiderate or incompassionate.
