ENTHUSIASTIC Meaning of ENTHUSIASTIC in English a. ; ( also ~al ) 1.Fanatical, bigoted.2.Visionary, extravagant.3.Ardent, earnest, vehement, zealous, fervent, fervid, burning, flaming, glowing, passionate, impassioned. Soule. Dictionary of English synonyms. Словарь английских синонимов. 2012