entuzjastyczny bedeutet auf Englisch

afire▼adjective
metaphorically on fire

ebullient▼adjective
enthusiastic

enthusiastic▼adjective
with zealous fervor; excited, motivated

exuberant▼adjective
of people: very high-spirited

rapturous▼adjective
being full of rapture

thrilled▼adjective
Extremely excited or delighted.