When it comes to writing, it`s common to use words that convey agreement and harmony. However, at times, you may want to show contrast or opposition to a particular idea. In such cases, it`s important to have a good understanding of antonyms to agreement, which can add depth and complexity to your writing.

Antonyms are words that have opposite meanings, while antonyms to agreement are words that express disagreement or opposition. Here are some common antonyms to agreement that you can use to express disagreement or contrast in your writing:

1. Disagreement: This is a straightforward antonym to agreement. It means a lack of consensus or conflicting opinions. Instead of saying `we all agreed,` you can say `we expressed disagreement.`

2. Contradiction: This word means a direct opposition to a particular idea or statement. Instead of saying `this supports my argument,` you can say `this is a contradiction to what I am arguing.`

3. Opposition: This means a person or group that opposes or disagrees with a particular viewpoint or idea. Instead of saying `we all came to a consensus,` you can say `there were many who expressed opposition to the idea.`

4. Refutation: This means proving a particular argument or statement to be false or incorrect. Instead of saying `this supports my argument,` you can say `this refutes the argument that I am making.`

5. Disapproval: This means a negative judgement or rejection of a particular idea or statement. Instead of saying `everyone approves of this decision,` you can say `there is a lot of disapproval for this decision.`

6. Incompatibility: This means a lack of compatibility or coherence with a particular idea or statement. Instead of saying `these two ideas go together,` you can say `these two ideas are incompatible.`

7. Dissent: This means expressing a different or opposing viewpoint to a particular idea or statement. Instead of saying `everyone agreed to the plan,` you can say `there were some that dissented from the plan.`

Knowing these antonyms to agreement will help you to express disagreement or contrast more effectively in your writing. However, it`s important to use them judiciously and depending on the context of your writing. It`s not necessary to use them in every sentence, doing so may make your writing feel strained and contrived. The goal is always to create a clear, concise, and meaningful piece of content.