Clamor against is a strong phrase that suggests a collective uproar or protest against something. However, not all situations require loud and vocal opposition to make a point. Antonyms for clamor against could include peaceful, silent, or passive methods of dissent. Examples of opposing actions may include non-violent protests, sign holding, petitions or letter campaigns, social media sharing or boycotting certain products or services. These methods show that there is opposition or disapproval towards a particular issue, without necessarily resorting to loud and raucous behavior. This is an important reminder that speaking up and making a difference doesn't always have to involve noise and chaos.