numb numb /ˈnʌm/

adjective

1. () Lacking sensation  ( asleep , benumbed , numb )
   lacking sensation
    My foot is asleep
   my foot is asleep
    Numb with cold
   numb with cold
   
2. So frightened as to be unable to move; stunned or paralyzed with terror; petrified  ( numb )
   so frightened as to be unable to move; stunned or paralyzed with terror; petrified
    Too numb with fear to move
   too numb with fear to move
   
3. (followed by 'to') not showing human feeling or sensitivity; unresponsive  ( dead , numb )
   (followed by 'to') not showing human feeling or sensitivity; unresponsive
    Passersby were dead to our plea for help
   passersby were dead to our plea for help
    Numb to the cries for mercy
   numb to the cries for mercy
   

verb

1. Make numb or insensitive  ( benumb , blunt , dull , numb )
   make numb or insensitive
    The shock numbed her senses
   The shock numbed her senses