be·numb 
/bɪˈnʌm/ verb
be·numbs; be·numbed; be·numb·ing /bɪˈnʌm/ verb [+ obj] formal : to make (someone) numb or unable to have emotions — usually used as benumbed ▪ After years of war, they had become benumbed [=numb] to violence. [=violence no longer caused them to feel strong emotions]
