Elan , zeal ,
zeal
Pep
gusto
exuberance excitement
enthusiasm
exultation comes to mind
"Utsaah" is the Hindi word for enthusiasm. "उत्साह"
empiricism enthusiasm epithelium evangelism
Elan
Enthusiasm is a noun.
The word enthusiasm means intense enjoyment or interest.
The noun 'enthusiasm' is an abstract noun; a word for an emotion.