Source : Webster's Revised Unabridged Dictionary (1913)

Snobbish \Snob"bish\, a.
   Of or pertaining to a snob; characteristic of, or befitting,
   a snob; vulgarly pretentious. -- {Snob"bish*ly}, adv.

Source : WordNet®

snobbish
     adj : befitting or characteristic of those who inclined to social
           exclusiveness and who rebuff the advances of people
           considered inferior [syn: {clannish}, {cliquish}, {clubby},
            {snobby}]