overenthusiasm

/ˌoʊvərɪnˈθuziæzəm/
noun
  1. Excessive or too much enthusiasm; being overly eager or excited about something.
    • His overenthusiasm for the project made his coworkers nervous.
    • The coach warned the team about overenthusiasm before the big game.
    • Her overenthusiasm at the party led to a few awkward moments.
What does "overenthusiasm" mean? | whatsthatwordmean | whatsthatwordmean