The phrase 'unfriendly toward' is correct and usable in written English.
It is typically used to describe a negative attitude or a lack of friendliness someone may have when interacting with a particular person or group of people. For example, "I felt the boss was unfriendly toward me during our meeting this morning."
Tells how Bonn was unfriendly toward Hitler in the 1930s.
As a candidate, Trump seemed decidedly unfriendly toward Japan.
3. The Academy -- which can take itself very seriously -- is relatively unfriendly toward comedies.
In particular, Teo realized he wasn't obligated to be nice to people who were unfriendly toward him.
"I see acts like this as very unfriendly toward big cities," said John D. Spencer, the mayor of Yonkers.
Togon-temür was not unfriendly toward Chinese civilization, but this could not alter the contempt of many leading Mongols for Chinese civilian institutions.
PROFILE of the Ford Foundation tells about The Rockefeller Foundation's beginning & the unfriendly attitude toward it In 1915, a Commission on Industrial Relations, headed by Frank P. Walsh, a N.Y.
"Official contacts with Chechen terrorists are one more explicitly unfriendly act toward Russia" that is "raising questions about the true motives of the American side," the Foreign Ministry said in a statement.
Ali Mobasheri, a mid-level cleric who runs the Revolutionary Court, criticized his "lack of good will and unfriendly behavior toward the judiciary," adding that Mr. Sahabi had a big cell that had furniture and even a television set.
Once again, the Parks Department shows its unfriendly policies toward New Yorkers it should be serving by instituting a fee for its community athletic facilities ("New York Says Poor Must Pay for Recreation," front page, March 18).
Sandburg's F.B.I. record shows that in 1941 an interoffice memorandum distributed among bureau officials noted that he had "manifested an unfriendly attitude" toward the F.B.I. at a luncheon in Chicago.
