adj. 25B6; adjective FERVENT, ardent, fervid, fanatical, passionate, impassioned, devout, devoted, committed, dedicated, enthusiastic, eager, keen, avid, vigorous, energetic, intense, fierce; poetic/literary perfervid.
apathetic.
ZEALOUS
Meaning of ZEALOUS in English
Concise Oxford thesaurus English vocabulary. Краткий оксфордский словарь английского языка тезаурус. 2012