The term "subversive activity" refers to any action that aims to undermine or destabilise a government or established authority. Some synonyms for this term include revolutionary action, insurrection, dissent, rebellion, sabotage, and subversion. These terms describe activities taken by groups or individuals who seek to challenge the status quo and achieve change. While subversive activities may be perceived as negative by those in positions of power, they can also represent a valuable tool for bringing about social and political progress. By definition, subversive activity is often conducted in secret or disguised, making it a difficult and controversial practice.