Synonyms for Obliterate:

n.

liquidate, mutilate, level, vandalize, trash, devastate, eat away, shatter, ravage, ruin. mark out, tuck away, submerge, camouflage, mask, lie low. repress, escape, make, slip your mind/memory, snuff out, help, clear, blank out, lose sight of, put something behind you, uproot, root. cross, continue, rub, blot, scratch, wipe, vacate. obliterate (noun)
efface, destroyed, hide, blot out, obscure, wipe out, obliterated, blotted out.

v.

annul (verb)
disclaim, deny, reject, destroy, revoke, annul, dissolve, Disaffirm, dismiss, negate, extinguish, efface, abnegate, neutralize, veto, invalidate, abolish, cancel, refute, retract, disavow, nullify, delete, divorce, eradicate, withdraw, repudiate, eliminate, undo.
change (verb)
wipe out.
destroy (verb)
erase, expunge, cut, eradicate, annihilate, blot out, wipe out, efface, cancel, level, scratch, obscure, trash, eliminate, delete, ravage, mark out, liquidate.
forget (verb)
forget, overlook, neglect, blank, lose, elapse.
obliterate (verb)
cut, annihilate, censor, omit, strike, expunge, edit, erase, expurgate.

Other synonyms:

ravage, vandalize, trash, eat away, shatter, mutilate. uproot, blank out, devastate. rub, scratch. vacate, blot, ruin. liquidate. cross. escape. annul
neutralize.
forget
lose sight of.
rub
wipe.
Other relevant words:
root, mutilate, camouflage, make, blot, wipe, vacate, escape, uproot, destroyed, mask, vandalize, mark out, hide, shatter, blot out, ruin, submerge, rub, obliterated, blotted out, snuff out, clear, wipe out, trash, level, devastate, ravage, liquidate, obscure, scratch, cross, repress, continue.

Usage examples for obliterate

  1. Strange to say, it was Clem who, during the past three years, had been the active one in seeking to obliterate disagreeable memories. – The Nether World by George Gissing
  2. Perhaps you think I am not old enough to give you advice, but I will say that, for your own sake, you ought to crush and obliterate the feelings you have toward our sister; and if you do not choose to do it for your own sake, you ought to do it for her sake and that of our sisterhood. – The House of Martha by Frank R. Stockton
  3. All good citizens must unite in honest efforts to obliterate the effects of war, and to restore the blessings of peace. – Legends of the Skyline Drive and the Great Valley of Virginia by Carrie Hunter Willis Etta Belle Walker