fervent (adj.)
- abandoned
- ablaze
- afire
- animated
- ardent
- assiduous
- blazing
- breathless
- burning
- captivated
- committed
- cordial
- dedicated
- delirious
- devoted
- devout
- diligent
- drunk
- eager
- earnest
- ecstatic
- emotional
- emphatic
- energetic
- enraptured
- enthusiastic
- excited
- exciting
- exuberant
- faithful
- fanatical
- febrile
- fervid
- fevered
- feverish
- fiery
- flaming
- flushed
- frantic
- frenzied
- glowing
- hard
- hardworking
- heartfelt
- hearty
- heated
- hectic
- hot
- hot-blooded
- hotheaded
- impassioned
- indefatigable
- industrious
- inflamed
- intense
- intent
- intoxicated
- keen
- laborious
- lively
- loyal
- passionate
- perfervid
- pious
- provoking
- rapt
- rapturous
- red-hot
- relentless
- religious
- resolute
- responsive
- sedulous
- seething
- serious
- sincere
- sleepless
- spirited
- steaming
- steamy
- stimulating
- stirring
- strenuous
- tender
- tireless
- unfeigned
- unflagging
- unremitting
- unrestrained
- unsleeping
- unsparing
- unwearied
- urgent
- vehement
- vigorous
- warm
- warmhearted
- white-hot
- wholehearted
- zealous
