1. new $\neq$ old-------> the newest
2. cheap $\neq$ expensive-------> the cheapest
3. small $\neq$ big---------> the smallest
4. bad $\neq$ good--------> the worst
5. cold $\neq$ hot------> the coldest
6. unpopular $\neq$ popular------> the most unpopular
7. dirty $\neq$ clean--------> the dirtiest
8. clean $\neq$ dirty-------> the cleanest