His speech was dismissed as mere rhetoric by the opposition.
The opposition worked to elect their candidate. They were in opposition to the new law.
The opposition is fierce, so we must persevere.
"Opposition" is a noun, and it refers to being against something, not being in favor of it.) Two examples: (1) The governor wanted to build a casino in Middleton, but there was a lot of opposition from the town's residents. (2) There are many people who support the governor's plan, but the opposition to it is very strong.
I found myself in opposition to all of the candidate's political viewpoints.
The classes' opposition to the extra homework was of no interest to the teacher.
To make this sentence correct you should say "the plan has been met with opposition".
There was some opposition to Nazism in the beginning but it was mercilessly put down.
So far he has been met with vociferous opposition.
The coach tried to analyze the opposition's gameplan.
There was opposition to the policy but it was muted rather than overt or united.
The President met formidable opposition to his health care plan.