The Collaborative International Dictionary of English v.0.48:

Welcome \Wel"come\, v. t. [imp. & p. p. Welcomed; p. pr. & vb.
   n. Welcoming.] [AS. wilcumian.]
   To salute with kindness, as a newcomer; to receive and
   entertain hospitably and cheerfully; as, to welcome a
   visitor; to welcome a new idea. "I welcome you to land."
   --Addison.
   [1913 Webster]

         Thus we salute thee with our early song,
         And welcome thee, and wish thee long.    --Milton.
   [1913 Webster]

WordNet (r) 3.0 (2006):

welcoming
    adj 1: very cordial; "a welcoming smile"

Moby Thesaurus II by Grady Ward, 1.0:

27 Moby Thesaurus words for "welcoming":
   admissible, admissive, admissory, amiable, cordial, friendly,
   generous, genial, gracious, hearty, hospitable, imbibitory,
   ingestive, intromissive, intromittent, invitatory, inviting,
   liberal, neighborly, open, openhearted, receivable, receptible,
   receptive, recipient, warm, warmhearted