adj.
- Serving to convince: a convincing argument; a convincing manner.
- Believable; plausible: a convincing story. See synonyms at valid.
convincingness con·vinc'ing·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.