[be] set against {sth}
1
to be opposed to something such as a particular idea, action, or situation
- He was set against the idea of relocating for a new job.
- Despite the benefits, he was dead set against taking the new job because it required relocating.
- Many people are set against the use of plastic bags due to environmental concerns.
- His parents were dead set against his decision to drop out of college, insisting he complete his education.
- The employees were set against the company's decision to cut benefits.