ADJECTIVE (3)

1. favorable to life and growth;
- Example: "soil sufficiently hospitable for forest growth"
- Example: "a hospitable environment"

2. disposed to treat guests and strangers with cordiality and generosity;
- Example: "a good-natured and hospitable man"
- Example: "a hospitable act"
- Example: "hospitable invitations"

3. having an open mind;
- Example: "hospitable to new ideas"
- Example: "open to suggestions"

The Collaborative International Dictionary of English v.0.48:

Hospitable \Hos"pi*ta*ble\, a. [Cf. OF. hospitable, LL.
   hospitare to receive as a guest. See Host a landlord.]
   1. Receiving and entertaining strangers or guests with
      kindness and without reward; kind to strangers and guests;
      characterized by hospitality. --Shak.
      [1913 Webster]

   2. Proceeding from or indicating kindness and generosity to
      guests and strangers; as, hospitable rites.
      [1913 Webster]

            To where you taper cheers the vale
            With hospitable ray.                  --Goldsmith.
      [1913 Webster]

WordNet (r) 3.0 (2006):

hospitable
    adj 1: favorable to life and growth; "soil sufficiently
           hospitable for forest growth"; "a hospitable environment"
           [ant: inhospitable]
    2: disposed to treat guests and strangers with cordiality and
       generosity; "a good-natured and hospitable man"; "a
       hospitable act"; "hospitable invitations" [ant:
       inhospitable]
    3: having an open mind; "hospitable to new ideas"; "open to
       suggestions"

Moby Thesaurus II by Grady Ward, 1.0:

92 Moby Thesaurus words for "hospitable":
   admissible, admissive, admissory, affable, agreeable, amenable,
   amiable, amicable, approachable, ardent, assuring, bighearted,
   bounteous, bountiful, cheering, civil, clubbable, clubbish, clubby,
   comforting, communicative, companionable, companionate, compatible,
   condolatory, condolent, condoling, congenial, consolatory,
   consoling, convivial, cooperative, cordial, courteous, encouraging,
   fit for society, fond of society, free, freehanded, freehearted,
   friendly, generous, genial, giving, gracious, greathearted,
   gregarious, handsome, heartening, hearty, imbibitory, ingestive,
   intromissive, intromittent, invitatory, inviting, large,
   largehearted, lavish, liberal, magnanimous, munificent, neighborly,
   of good comfort, open, open-minded, openhanded, openhearted,
   princely, profuse, reassuring, receivable, receptible, receptive,
   recipient, relieving, sociable, social, social-minded, stintless,
   supportive, sympathetic, tolerant, ungrudging, unselfish,
   unsparing, unstinted, unstinting, urbane, warm, warmhearted,
   welcoming