There are many synonyms for the word "extirpator," which is someone or something that completely destroys or removes something. Some synonyms include annihilator, eradicator, demolisher, obliterator, and decimator. These words all convey a sense of complete and total destruction. Other synonyms for extirpator include exterminator, razer, and excisor. These words often imply more specific types of destruction, such as the elimination of pests or the cutting away of unwanted growth. No matter which word is used, they all imply a strong and decisive action taken to completely remove something from existence.