Japanese phrase
反対です。 han tai de su
Meaning
I am against it.
When to use it
Shows clear opposition to a plan, idea, or action. It is polite in form but firm in tone, so the context and voice can affect how strong it sounds.
Example dialogue
来月から値上げします。 rai getsu ka ra ne a ge shi ma su
We will raise the price starting next month.
それには反対です。 so re ni wa han tai de su
I am against it.