1. High
2. Superior
3. Elevated
4. Uppermost
5. Supreme
6. Overhead
7. Preeminent
8. Upper-class
9. Topmost
10. Paramount
11. High-ranking
12. Lofty
13. High-minded
14. Ascending
15. Eminent
16. High-level
17. Grand
18. Overarching
19. Prominent
20. Supremely
21. Peak
22. Uplifted
23. Exalted
24. Superlative
25. Prominent
26. Upright
27. Stately
28. Supremely
29. Skyward
30. Principal

When trying to find alternative words for ‘upper’, there are a variety of ideas to choose from. Whether you are looking for synonyms for upper in a formal or informal context, there are plenty of words that could be used to replace it. Some of the best synonyms for ‘upper’ include ‘high’, ‘elevated’, ‘overhead’, ‘lofty’, and ‘prominent’. These words can be used to describe a variety of situations and can be used in formal or informal contexts. Additionally, there are other words for ‘upper’ such as ‘superior’, ‘topmost’, and ‘stately’. All of these words can be used in a variety of contexts and can be used to add variety to your writing. No matter what your need is, there are plenty of synonyms for ‘upper’ to choose from.