Wordnet 3.0
ADVERB (1)
1. 
 in a prissy manner; 
- Example: "the new teacher alienates the children by behaving prissily"[syn: primly, prissily]
WordNet (r) 3.0 (2006):
prissily
    adv 1: in a prissy manner; "the new teacher alienates the
           children by behaving prissily" [syn: primly,
           prissily]