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Related to subversionary: subvert


a. The act or an instance of subverting.
b. The condition of being subverted.
2. Obsolete Overthrow or ruin.

[Middle English subversioun, from Old French subversion, from Late Latin subversiō, subversiōn-, from Latin subversus, past participle of subvertere, to subvert; see subvert.]

sub·ver′sion·ar′y adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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Take it." Bernard promises, "I'll do it." This could have been the start of a subversionary clique.