contumeliously

contumelious +‎ -ly

contumeliously (comparative more contumeliously, superlative most contumeliously)

1. In a contumelious, insolent manner.
   • 1648, William Petty, A Declaration Concerning the newly invented Art of Double Writing., page 4:

     Lastly, Because I would take away all occasions which men might have to incur the danger of the penalty allowed by the Parliament by hindring them so to doe, at least untill I could so provide for my selfe, as that I need not to be extreamly rigorous against any, but such as shall contumeliously affront the Authority of my grant.