Enthusiastic \En*thu`si*as"tic\, Enthusiastical \En*thu`si*as"tic*al\, a. [Gr. ? .] Filled with enthusiasm; characterized by enthusiasm; zealous; as, an enthusiastic lover of art. ``Enthusiastical raptures.'' --Calamy. -- {En*thu`si*as"tic*al*ly}, adv. A young man . . . of a visionary and enthusiastic character. --W. Irving.