Wordnet 3.0
ADVERB (1)
1. 
 of an unusually noticeable or exceptional or remarkable kind (not used with a negative); 
- Example: "her victory was quite something"- Example: "she's quite a girl"- Example: "quite a film"- Example: "quite a walk"- Example: "we've had quite an afternoon"[syn: quite, quite a, quite an]
WordNet (r) 3.0 (2006):
quite an
    adv 1: of an unusually noticeable or exceptional or remarkable
           kind (not used with a negative); "her victory was quite
           something"; "she's quite a girl"; "quite a film"; "quite
           a walk"; "we've had quite an afternoon" [syn: quite,
           quite a, quite an]