Wordnet 3.0
NOUN (1)
1. 
 fearful expectation or anticipation; 
- Example: "the student looked around the examination room with apprehension"[syn: apprehension, apprehensiveness, dread]
The Collaborative International Dictionary of English v.0.48:
Apprehensiveness \Ap`pre*hen"sive*ness\, n.
   The quality or state of being apprehensive.
   [1913 Webster]
WordNet (r) 3.0 (2006):
apprehensiveness
    n 1: fearful expectation or anticipation; "the student looked
         around the examination room with apprehension" [syn:
         apprehension, apprehensiveness, dread]