Solution:Democracy (Noun) = a system of government by the whole population or all the eligible members of a state, typically through elected representatives
Monarchy (Noun) = a form of government with a monarch at the head
Republec (Noun) = a state in which supreme power is held by the people and their elected representatives, and which has an elected or nominated president rather than a monarch
Delicacy (Noun) = humility, courtsy
Popular (Adjective) = liked, admired, or enjoyed by many people or
Hence, monarchy is the antonym of democracy.