1. the quality or state of being insensitive; lack of sensitivity to the feelings, needs, or circumstances of others
Usage: often used to describe emotional or social insensitivity
2. the quality of being unresponsive or unaffected by physical stimuli or sensations
Usage: technical or medical usage

Examples

• His insensitiveness to her pain made the situation worse.
• The insensitiveness of the remark offended everyone in the room.
• Her insensitiveness to cultural differences caused misunderstandings.
• The doctor noted the patient's insensitiveness to temperature changes.
• His insensitiveness to criticism prevented him from improving.
• We were shocked by the insensitiveness of his comments about the tragedy.