Disregard means to ignore or pay no attention to something. It usually implies that something should have been given consideration, but was not. Some synonyms for disregard are neglect, ignore, overlook, dismiss, and brush aside. Neglect suggests not giving something the proper attention it deserves, while ignore implies a deliberate act of not paying attention. Overlook means to fail to notice something, as if it were not there. Dismiss means to reject something as unworthy of consideration, and brush aside means to dismiss something quickly or without much thought. All of these words suggest a lack of attention or interest in something important.