What is Overenthusiasm?

Overenthusiasm definition and meaning on Dictionary terms:
absorbing or controlling possession of the mind by any interest or pursuit; lively interest: He shows marked enthusiasm for his studies.
an occupation, activity, or pursuit in which such interest is shown: Hunting is his latest enthusiasm.
any of various forms of extreme religious devotion, usually associated with intense emotionalism and a break with orthodoxy.


reference: https://www.dictionary.com/browse/overenthusiasm