obliterate

verb

1 the memory was so painful that he obliterated it from his mind:

erase, eradicate, expunge, efface, blot out, rub out, wipe out, remove all traces of, blank out, block out, delete, strike out, cancel, cross out, ink out, score out.

2 a nuclear explosion that would obliterate a city:

destroy, wipe out, annihilate, exterminate, extirpate, demolish, eliminate, eradicate, kill, decimate, liquidate, wipe off the face of the earth, wipe off the map;

informal zap.

▷antonyms create, establish.