(1) Not welcoming or generous; unfriendly. (2) Providing no shelter or food (such as a desert).
Example:
Shot down by government agents, the smuggler struggled for survival on the rocky, inhospitable island.
An inhospitable host fails to make his guests comfortable, in order to show them they are unwelcome. An inhospitable territory, such as Death Valley or Antarctica, may be barren and harsh in its climate. In a similar way, a country may be called inhospitable to democracy, just as a company may be called inhospitable to new ideas.