What is Minority Government?

Legal Definition
A minority government, or minority cabinet or minority parliament, is a cabinet formed in a parliamentary system when a political party or coalition of parties does not have a majority of overall seats in the parliament. It is sworn into office, with or without the formal support of other parties, to enable a government to be formed. Under such a government, legislation can only be passed with the support of enough other members of the legislature to provide a majority, encouraging multi-partisanship. In bicameral parliaments, the term relates to the situation in chamber whose confidence is considered most crucial to the continuance in office of the government.

A minority government tends to be much less stable than a majority government because, if they can unite for the purpose, opposing parliamentary members have the numbers to vote against legislation, or even bring down the government with a vote of no confidence.
-- Wikipedia