Webster's Revised Unabridged Dictionary · 1913

Enthusiastic

Enthusiastic , adjective

[Greek {not transcribed}.]

Filled with enthusiasm; characterized by enthusiasm; zealous; as, an enthusiastic lover of art.
Enthusiastical raptures. — Calamy
A young man... of a visionary and enthusiastic character. — W. Irving

Also: Enthusiastical

Enthusiastic , noun

An enthusiast; a zealot. [Obsolete]