n Great or intense feeling for a subject or cause; ardent eagerness or zeal (Gk en + theos = god, spirit; enthusiasm = to be inspired by a god)
Enkindled and kindling fervor of soul; strong excitement of feeling on behalf of a cause or a subject; ardent and imaginative zeal or interest; as, he engaged in his profession with enthusiasm
intensity of interest; the passion one has for a purpose or task; a leadership quality that ignites the interest and energy of others See commitment
Enthusiasm is great eagerness to be involved in a particular activity which you like and enjoy or which you think is important. Their skill, enthusiasm and running has got them in the team
An enthusiasm is an activity or subject that interests you very much and that you spend a lot of time on. Draw him out about his current enthusiasms and future plans. = interest