The word "demolitionary" refers to something that is destructive or aimed at demolishing or tearing down. Some synonyms for this word include "destructive," "devastating," "ruinous," "disastrous," "catastrophic," "wrecking," and "ravaging." These words emphasize the negative impact that the demolitionary action or behavior can have on its surroundings. Other synonyms include "abolishing," "eradicating," "extirpating," "annihilating," and "obliterating," which convey the sense of complete removal or elimination. The use of synonyms can add variety and nuance to one's writing, and choosing the appropriate word can help to convey the intended meaning more effectively.