contentious

adjective2

1. •
   Marked by heated arguments or controversy.

   • His essay[…] is likely to draw a furious response from across the party, where [Tony] Blair’s legacy remains highly contentious. — 2026
2. •
   Given to struggling with others out of jealousy or discord.

   • She was not a contentious person as the Other had been; she did not argue and contradict everything I said. — 2020