the.com/fervent
Feeling things at a rolling boil while everyone else simmers politely.
means Showing passionate, intense emotion or belief, with heat that refuses to be lukewarm.
from From Latin fervere, to boil — the same root simmering inside fervor and effervescent, all of them literally bubbling.
Temperature wordOriginally described actual heat, not just emotion.
Boiling cousinsShares roots with fervor and effervescent.
Degree mattersStronger than eager, gentler than fanatical.