avid

adjectives

(often followed by `for') ardently or excessively desirous
"avid for adventure"; "an avid ambition to succeed"; "fierce devouring affection"; "the esurient eyes of an avid curiosity"; "greedy for fame"
avid, devouring, esurient, greedy
marked by active interest and enthusiasm
"an avid sports fan"
avid, zealous
is derived from
avidity
is derived from
avidness