adj.
- Prone to or participating in a rebellion: rebellious students.
- Of, relating to, or characteristic of a rebel or rebellion: rebellious behavior.
- Resisting treatment or control; unruly. See synonyms at insubordinate.
rebelliousness re·bel'lious·ness n.
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.