avid

Synonyms:
Avid, eager, keen all share the sense of strongly desirous. Avid suggests a desire akin to greed, so strong as to be insatiable: driven by an avid need for fame and recognition. Eager implies a desire that is strong and impatient but less than overpowering: eager to try his hand at new tasks. Keen carries a sense of zest and active, alert desire: an amateur painter, ever keen to try new techniques.