perfervid (adj.)
- abandoned
- afire
- ardent
- bigoted
- blazing
- burning
- committed
- dedicated
- delirious
- devoted
- devout
- earnest
- enhanced
- extravagant
- extreme
- extremist
- faithful
- fanatic
- fanatical
- febrile
- fervent
- fervid
- feverish
- fiery
- flaming
- frantic
- frenetic
- frenzied
- furious
- glowing
- haggard
- hearty
- heated
- hectic
- hot
- hot-blooded
- hysteric
- impassioned
- infatuated
- inordinate
- insane
- intense
- intensified
- intent
- irrational
- loyal
- overanxious
- overeager
- overenthusiastic
- overzealous
- passionate
- rabid
- red-hot
- resolute
- serious
- sincere
- spirited
- unreasonable
- vehement
- warm
- white-hot
- wild
- wild-eyed
- zealous
