1. a world or realm that is opposite, contrary, or inverse to the real or ordinary world; an imagined alternative reality
Usage: literary; speculative; often used in science fiction and fantasy contexts

Examples

• In the novel, the protagonist discovers a counterworld where all moral values are reversed.
• The fantasy series depicts a counterworld hidden behind an invisible barrier.
• Scientists in the story theorize about a counterworld made of antimatter.
• The artist's paintings explore a counterworld of impossible geometry and surreal landscapes.
• The counterworld in the film operates under completely different physical laws than our own.