encyclopaedic

from WordNet (r) 3.0 (2006)

encyclopaedic
    adj 1: broad in scope or content; "encyclopedic knowledge" [syn:
           {encyclopedic}, {encyclopaedic}]

from The Collaborative International Dictionary of English v.0.48

Encyclopedic \En*cy`clo*ped"ic\, Encyclopedical
\En*cy`clo*ped"ic*al\, a. [Cf. F. encyclop['e]dique.]
   Pertaining to, or of the nature of, an encyclopedia; broad in
   scope or content; embracing a wide range of subjects; as, a
   person having encyclopedic knowledge of a subject. [Also
   spelled {encyclopaedic}.]
   [1913 Webster + WordNet 1.5]