Here are sentences for both words.
The cheerleaders help spread enthusiasm to all the fans at the game. (Enthusiasm is a noun.)
She's a good cheerleader because she's friendly, energetic and enthusiastic. (Enthusiastic is an adjective.)
Example sentence - We were quite enthusiastic about the arrival of our relatives.
Enthusiastic
more enthusiastic most enthusiastic
With it's Championship course and sea views, it's the ideal place for the golfing enthusiast.--From jessica southwood,Kent
Enthusiastic
enthusiastically is the state of being enthusiastic enthusiastic is having or showing great interest
Enthusiastic is an adjective.
The anagram of "enthusiastic" is unchastities.
Enthusiastic means "filled with the divine," from en (in) and theós, god. Don't ever use forms like "enthused" unless you're trying to be funny. There is no such word.
"Spiritless" is the opposite of enthusiastic.
Enthusiastic whoops greeted the idea.
The head cheerleader was very enthusiastic.