The word 'most monarchial' refers to the most absolute or autocratic rule, usually associated with monarchies. The antonyms for this word could be 'democratic,' which refers to a government system in which the power is vested in the people, or 'liberal,' meaning a political philosophy that emphasizes individual rights, equality, and freedom. Other antonyms may include 'egalitarian,' 'progressive,' or 'republican.' These words describe political systems that emphasize participation, freedom, and equality. In contrast to monarchies, these systems provide greater representation and equality for all citizens. These antonyms suggest a more modern and progressive approach to governance in contrast to the traditional and hierarchical structure of monarchies.