The word "tzarist" is commonly used to describe the political system that existed in Russia prior to the Russian Revolution of 1917. However, there are several other words that can be used as synonyms for "tzarist". These include "imperial", "monarchic", "autocratic", and "despotic". Each of these words helps to capture the essence of the tzarist system in Russia, which was characterized by a centralized power structure that was dominated by a single ruler, the tsar. In addition to these options, other possible synonyms for "tzarist" could include "feudal", "totalitarian", and "authoritarian".