equivocate(formal to avoid giving a clear or direct answer to a question: She accused the minister of equivocating, claiming that he had deliberately avoided telling the public how bad the problem really was.)
weasel words(выражение популяризировано президентом США (1901-09) Т. Рузвельтом (Th. Roosevelt, 1858-1919): One of our defects as a nation is a tendency to use what have been called "weasel words". (Speech at St. Louis, May 31, 1916, HBQ) Taras)