An example of unfriendly is the character Ebenezer Scrooge in the book A Christmas Carol.
An unfriendly nation.
Her unfriendly gaze shifted to Katie.
Some unfriendly lowlife put a bullet in each of his pretty blue eyes.
The Church, it is true, in council after council, passed decisions unfriendly to the Jews.
His earlier volumes of poems, dealing with romantic themes, received little but unfriendly comment.