'Subversive' definitions:

Definition of 'subversive'

From: WordNet
adjective
In opposition to a civil authority or government [syn: insurgent, seditious, subversive]
noun
A radical supporter of political or social revolution [syn: revolutionist, revolutionary, subversive, subverter]

Definition of 'Subversive'

From: GCIDE
  • Subversive \Sub*ver"sive\, a. [Cf. F. subversif.] Tending to subvert; having a tendency to overthrow and ruin. [1913 Webster]
  • Lying is a vice subversive of the very ends and design of conversation. --Rogers. [1913 Webster]

Synonyms of 'subversive'

From: Moby Thesaurus