The Collaborative International Dictionary of English v.0.48:

Extrinsicality \Ex*trin`si*cal"i*ty\, Extrinsicalness
\Ex*trin"sic*al*ness\, n.
   The state or quality of being extrinsic.
   [1913 Webster]

Moby Thesaurus II by Grady Ward, 1.0:

42 Moby Thesaurus words for "extrinsicality":
   alienage, alienism, appearance, buckram, ceremonial,
   ceremoniousness, ceremony, dignity, exteriority, externality,
   externalness, extraneousness, foreignness, form, formality,
   formalization, gravity, impersonality, intrusion, manner, mien,
   nonassimilation, nonconformity, openness, outerness,
   outward appearance, outwardness, pomp, pomposity, primness,
   rigidness, ritual, rituality, seeming, shallowness, solemnity,
   starchiness, stiffness, stiltedness, stylization, superficiality,
   weight