conservatism
The spelling Conservatism is also used for meaning 1.
1 n-uncount Conservatism is a political philosophy which believes that if changes need to be made to society, they should be made gradually. You can also refer to the political beliefs of a conservative party in a particular country as Conservatism.
...the philosophy of modern Conservatism.
2 n-uncount Conservatism is unwillingness to accept changes and new ideas.
The conservatism of the literary establishment in this country is astounding...