'Nonmember' definitions:

Definition of 'nonmember'

From: WordNet
noun
A person who is not a member [ant: fellow member, member]

Definition of 'Nonmember'

From: GCIDE
  • Nonmember \Non*mem"ber\, n. One who is not a member; as, nonmembers are not allowed in the club reading room. [1913 Webster +PJC]