obliterate in WordNet English dictionary

1. make undecipherable or imperceptible by obscuring or concealing
   "a hidden message"; "a veiled threat"
   obscure  blot out  obliterate  veil  hide 
   
2. remove completely from recognition or memory
   "efface the memory of the time in the camps"
   obliterate  efface 
   
3. mark for deletion, rub off, or erase
   "kill these lines in the President's speech"
   kill  obliterate  wipe out 
   
4. do away with completely, without leaving a trace
   obliterate 
   

1. reduced to nothingness
   blotted out  obliterate  obliterated