Idea that opposition to a government is legitimate; organized opponents to the government of the day.

Name given to the opposing, or minority party, in the United Kingdom.

a necessity in a democracy, but the left in this country is neither loyal nor opposed

a necessity in any community

a necessity of democracy

Loyal opposition is the concept that one can be opposed to the actions of the government or ruling party of the day without being opposed to the constitution of the political system.