WordNet (r) 3.0 (2006):

uneager
    adj 1: lacking interest or spirit or animation; "decrepit,
           colorless uneager things" [ant: eager]

Moby Thesaurus II by Grady Ward, 1.0:

19 Moby Thesaurus words for "uneager":
   afraid, averse, backward, desireless, hesitant, inappetent,
   indisposed, loath, loveless, nirvanic, passionless, reluctant, shy,
   unambitious, unaspiring, unattracted, undesirous, unenthusiastic,
   unwilling