In legal terms, the agreement opposed to public policy is a contract or an agreement that goes against the fundamental principles of justice, morality, or the interests of the public. In simpler words, it is a contract that is not enforceable in a court of law. Such agreements or contracts are deemed to be against the public good and are therefore considered to be null and void.

There are several reasons why an agreement or a contract may be opposed to public policy. Some of the common reasons include:

1. Illegal or immoral activities: If the contract involves illegal activities such as drug trafficking, theft, or other criminal activities, it will be considered against the public policy.

2. Unfair competition: Any agreement that involves unfair competition practices such as monopolies or price-fixing will be considered against the public policy.

3. Harmful to the environment: Any contract that involves activities that may cause harm to the environment such as pollution or destruction of natural habitats, can be considered against the public policy.

4. Violates human rights: Any agreement that violates human rights such as discrimination or forced labor will be opposed to public policy.

The courts can declare an agreement or a contract opposed to public policy if they determine that it goes against the principles of justice and fairness. This means that the agreement may be unenforceable, and neither party would be obligated to fulfill its terms.

It is important to note that an agreement or contract may be considered against the public policy even if it is not illegal. The principle of public policy is aimed at protecting the interests of the general public and ensuring that individuals do not engage in activities that may negatively affect society.

In conclusion, the agreement opposed to public policy is an important concept in the legal field. It is essential for businesses and individuals to ensure that their agreements and contracts are in line with the principles of justice, morality, and the public good. If a contract is found to be against public policy, it will not be enforceable in a court of law. As such, it is crucial to seek legal advice when drafting contracts and agreements to avoid any legal ramifications down the line.