zealous Meaning, Definition & Usage

  1. adjective satellite marked by active interest and enthusiasm
    avid.
    • an avid sports fan

WordNet

Zeal"ous adjective
Etymology
LL. zelosus. See Zeal.
Definitions
  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.

Webster 1913