Hostile
Part of speech: noun
Definition: An enemy; esp., an American Indian in arms against the whites; -- commonly in the plural.
Part of speech: adjective
Definition: Belonging or appropriate to an enemy; showing the disposition of an enemy; showing ill will and malevolence, or a desire to thwart and injure; occupied by an enemy or enemies; inimical; unfriendly
Example sentence: The universe is neither friendly nor hostile. It is merely indifferent. This makes me ecstatic.
Inhospitable
Part of speech: adjective
Definition: Not inclined to hospitality; unfriendly,Not offering shelter; barren or forbidding.