1. Boundlessness
2. Limitlessness
3. Endlessness
4. Immensity
5. Vastness
6. Unboundedness
7. Boundarylessness
8. Unendingness
9. Interminableness
10. Unrestrictedness
11. Unconstraint
12. Unmeasurability
13. Unfathomableness
14. Unmeasuredness
15. Unconfinableness
16. Spacelessness
17. Uncountableness
18. Unmeasurable
19. Unbounded
20. Unending
21. Unterminated
22. Unconstrained
23. Uninterrupted
24. Unceasing
25. Unrestricted
26. Unconfined
27. Unterminable
28. Unmeasurable
29. Uncountable
30. Unfathomable

When searching for synonyms for the word «infinity», there are many ideas to consider. Whether you are looking for the best word to describe the concept of something without an end, or simply a synonym for the word «infinity», this list of 30 words provides a variety of options. Here you will find words such as «boundlessness», «limitlessness», «endlessness», «immensity», «vastness», and «unboundedness» which all accurately describe the concept of infinity. Furthermore, words such as «unmeasurability», «unfathomableness», and «uncountableness» are also included in this list of synonyms for the word «infinity». With this list of synonyms, you can find the perfect word to accurately express the concept of infinity in your writing.