adj., -li·er, -li·est.
Not kindly; unkind.
adv.
In an unkind manner.
unkindliness un·kind'li·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.