white-hot

adjective3

1. •
   Hot enough to glow with a bright white light.
2. •
   Blazing.

   • Flames raced up the rows, blistering and charring and igniting ancient wood that erupted in a white-hot flare of heat. — 2017
3. •
   (figurative) Extremely fervid or zealous.

   • French protests are always lively, but as the journalist John Lichfield observed, “the white-hot anger” of the gilets jaunes was “something new and different”. — 2023