Adjective
1. incomparable
2. unparalleled
3. unrivaled
4. peerless
5. matchless
6. unequaled
7. unsurpassable
8. superlative
9. supreme
10. perfect
11. beyond compare
12. second to none
13. in a class of one's own
14. unique
15. distinctive
16. individual
17. unexampled
18. sui generis