1. 
[syn: nosy, nosey, prying, snoopy]
The Collaborative International Dictionary of English v.0.48:
nosey \nosey\ adj.
   Offensively or intrusively curious; prying; nosy; as, a nosy
   neighbor.
   Syn: inquisitorial, nosy, prying, snoopy.
        [WordNet 1.5] Nosethirl
WordNet (r) 3.0 (2006):
nosey
    adj 1: offensively curious or inquisitive; "curious about the
           neighbor's doings"; "he flipped through my letters in his
           nosy way"; "prying eyes"; "the snoopy neighbor watched us
           all day" [syn: nosy, nosey, prying, snoopy]