adj. 25B6; adjective KEEN, eager, enthusiastic, ardent, passionate, zealous; devoted, dedicated, wholehearted, earnest; Brit. informal as keen as mustard.
apathetic.
AVID
Meaning of AVID in English
Concise Oxford thesaurus English vocabulary. Краткий оксфордский словарь английского языка тезаурус. 2012