Backlash (noun)

1. A strong negative reaction by a group or society to a change or development.
2. A force that tends to counter an initial movement or change.

Origin:

From back + lash.

Examples:

1. The proposal generated a backlash from the community.
2. There was a backlash against the new policy.
3. The company experienced a backlash from customers.
4. The backlash from the fans was immediate and intense.
5. A backlash is a strong and negative reaction to a change or development, often pushing back against it.