Characterized by extreme enthusiasm, excitement, or energy.

अत्यधिक उत्साही (atyadhik utsaahi)

English Usage: She had a manic smile on her face while talking about her new project.

Hindi Usage: अपने नए प्रोजेक्ट के बारे में बात करते समय उसके चेहरे पर अत्यधिक उत्साही मुस्कान थी।

A state of excessive excitement or enthusiasm, often associated with mania.

उतावला (utavla)

English Usage: His manic energy was contagious at the party.

Hindi Usage: उसकी उतावली ऊर्जा पार्टी में संक्रामक थी।