1. showing or feeling no concern for others’ feelings; lacking empathy or consideration
2. not responsive or reactive to physical stimuli, changes, or influences

Examples

• His insensitive comment about her appearance hurt her feelings.
• The manager was insensitive to the employees’ concerns about working conditions.
• It was insensitive of him to joke about the accident.
• The plant is insensitive to changes in light levels.
• Her skin became insensitive to pain after the injury.
• The instrument was insensitive to small temperature variations.
• Making jokes at a funeral is incredibly insensitive.