suasiveness
sua·sive
(swā′sĭv)adj.
Having the power to persuade or convince; persuasive.
sua′sive·ly adv.
sua′sive·ness n.
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.
suasiveness
(ˈsweɪsɪvnɪs)n
persuasiveness
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014