1. Of the nature of or containing a concession.
2. Grammar Expressing concession, as the conjunction though.
[Late Latin concessīvus, from Latin concessus, past participle of concēdere, to concede; see concede.]
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.
in a concessive manner
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014