Men and women who have spoken unfavorably about the soviet government are called

Men and women who have spoken unfavorably about the soviet government are called "Dissidents".

A dissident, extensively characterized, is a man who effectively challenges a built up regulation, approach, or organization. In a religious setting, the word has been utilized since eighteenth century, and in the political sense since 1940, harmonizing with the ascent of totalitarian frameworks, particularly the Soviet Union.