Also found in: Thesaurus.
1. Of, relating to, or having the nature of sedition: seditious speech.
2. Given to, engaging in, or promoting sedition. See Synonyms at insubordinate.
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.