The Collaborative International Dictionary of English v.0.48:

Chimeric \Chi*mer"ic\, a.
   Chimerical.
   [1913 Webster]

WordNet (r) 3.0 (2006):

chimeric
    adj 1: being or relating to or like a chimera; "his Utopia is
           not as chimeric commonwealth but a practical improvement
           on what already exists"- Douglas Bush [syn: chimeric,
           chimerical, chimeral]