ZEALOUS
avid, zealous
(adjective) marked by active interest and enthusiasm; “an avid sports fan”
Source: WordNet® 3.1
Etymology
Adjective
zealous (comparative more zealous, superlative most zealous)
Full of zeal; ardent, fervent; exhibiting enthusiasm or strong passion.
Synonyms
• (full of zeal): ardent, eager, enthusiastic, fervent, passionate, zealotic
Antonyms
• (full of zeal): apathetic, dispassionate, indifferent, unenthusiastic
Source: Wiktionary
Zeal"ous, a. Etym: [LL. zelosus. See Zeal.]
1. Filled with, or characterized by, zeal; warmly engaged, or ardent,
in behalf of an object.
He may be zealous in the salvation of souls. Law.
2. Filled with religious zeal. [Obs.] Shak.
– Zeal"ous*ly, adv.
– Zeal"ous*ness, n.
Source: Webster’s Unabridged Dictionary 1913 Edition