The Collaborative International Dictionary of English v.0.48:

Incoming \In"com`ing\, a.
   1. Coming in; accruing.
      [1913 Webster]

            A full incoming profit on the product of his labor.
                                                  --Burke.
      [1913 Webster]

   2. Coming in, succeeding, or following, as occupant or
      possessor; as, in incoming tenant.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Incoming \In"com`ing\, n.
   1. The act of coming in; arrival.
      [1913 Webster]

            The incomings and outgoings of the trains.
                                                  --Dickens.
      [1913 Webster]

   2. Income; gain. [R.]
      [1913 Webster]

            Many incomings are subject to great fluctuations.
                                                  --Tooke.
      [1913 Webster]

WordNet (r) 3.0 (2006):

incoming
    adj 1: arriving at a place or position; "incoming class";
           "incoming mail" [ant: outgoing]
    2: entering upon a position of office vacated by another; "the
       incoming president" [ant: outgoing]
    n 1: the act of entering; "she made a grand entrance" [syn:
         entrance, entering, entry, ingress, incoming]

Moby Thesaurus II by Grady Ward, 1.0:

44 Moby Thesaurus words for "incoming":
   access, admission, approaching, arriving, coming, entering,
   entrance, entree, entry, homeward, homeward-bound, import,
   importation, importing, in, inbound, income, infiltration,
   inflooding, inflowing, ingoing, ingress, ingression, ingressive,
   inpouring, input, insertion, insinuation, intake, interpenetration,
   introduction, introgression, intrusion, intrusive, invasive,
   inward, inward-bound, irruptive, leakage, new, penetration,
   percolation, reception, seepage