Contentiously
The Century Dictionary and Cyclopedia
In a contentious manner; quarrelsomely; perversely; with wrangling.
Wiktionary, Creative Commons Attribution/Share-Alike License
adverb.
In a
contentious
manner
Word Usage
"He followed his London 2012 success by helping Rio de Janeiro win the 2016 Olympics and, most contentiously, masterminded Qatar's 2022 World Cup bid victory."