unhandsomely

un·hand·some

 (ŭn-hăn′səm)
adj.
1. Not attractive or beautiful; homely.
2. Not courteous or in good taste; ungracious.

un·hand′some·ly adv.
un·hand′some·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.

unhandsomely

(ʌnˈhænsəmlɪ)
adv
1. unattractively
2. discourteously
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in classic literature ?
Lorry, "that I was very unhandsomely dealt with, and that I ought to have had a voice in the selection of my pattern.
'I'll give you a dram when we've got through,' said he, affecting a sprightliness which sat on him most unhandsomely,
What am I to think of your standing quietly by and seeing me thus unhandsomely used?
is it not to nature that you are indebted for that robustness of mind which you so unhandsomely use to her scandal?