1. Alterable
2. Adaptable
3. Changeable
4. Fluctuating
5. Flexible
6. Unstable
7. Unpredictable
8. Unfixed
9. Unsettled
10. Indefinite
11. Unreliable
12. Unconstant
13. Volatile
14. Mutable
15. Modifiable
16. Unsteady
17. Intermittent
18. Uncertian
19. Unfirm
20. Unrestricted
21. Unrestricted
22. Uncontrolled
23. Unrestricted
24. Unregulated
25. Unbounded
26. Unrestricted
27. Unconfined
28. Unfixed
29. Unrestricted
30. Unrestricted

When it comes to finding the best ideas for synonyms of the word “variable”, there are many great options to consider. From alterable and adaptable to changeable and fluctuating, there are a variety of words that can be used to describe something that is variable. Additionally, words such as flexible, unstable, unpredictable, and unfixed can also be used to describe something that is variable. Furthermore, words such as indefinite, unreliable, unconstant, and volatile can be used as other words for variable. Ultimately, there are many great synonyms for the word variable that can be used to help explain the concept in a variety of different ways.