[syn: imperativeness, instancy]
The Collaborative International Dictionary of English v.0.48:
Instancy \In"stan*cy\, n.
   Instance; urgency. [Obs.]
   [1913 Webster]
         Those heavenly precepts which our Lord and Savior with
         so great instancy gave.                  --Hooker.
   [1913 Webster]
WordNet (r) 3.0 (2006):
instancy
    n 1: the quickness of action or occurrence; "the immediacy of
         their response"; "the instancy of modern communication"
         [syn: immediacy, immediateness, instantaneousness,
         instancy]
    2: the quality of being insistent; "he pressed his demand with
       considerable instancy" [syn: imperativeness, instancy]