vandalous adjective2 •vandalistic; resembling vandalismEven usually thoughtful newspapers such as the Washington Post have cited skateboarding as an irresponsible and vandalous activity to be banned from city streets. — 2001 •destructive; resembling a vandalThe word mob [Pöbel] invoked the image of a vandalous rabble and, with it, the specter of the Reign of Terror. — 2000 formsmore vandalous · most vandalous