Hypertext Webster Gateway: "unlisted"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Unlisted \Un*list"ed\, a.
Not listed; specif. (New York Stock Exchange), admitted to
quotation in the unlisted department, that is, admitted to be
dealt in on the floor, but not to the ``regular list.''
From WordNet (r) 1.7 (wn)
unlisted
adj 1: not on a list; "an unlisted telephone number" [ant: {listed}]
2: not having your name entered on a voting list; "an unlisted
voter"
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