Search Result for "jitteriness": 
Wordnet 3.0

NOUN (1)

1. the anxious feeling you have when you have the jitters;
[syn: jitteriness, jumpiness, nervousness, restiveness]



WordNet (r) 3.0 (2006):

jitteriness
    n 1: the anxious feeling you have when you have the jitters
         [syn: jitteriness, jumpiness, nervousness,
         restiveness]