1. Prolonged
2. Lengthy
3. Extended
4. Drawn-out
5. Far-reaching
6. Elongated
7. Interminable
8. Prodigious
9. Stretched
10. Endless
11. Limitless
12. Interminate
13. Lengthened
14. Outstretched
15. Far
16. Long-term
17. Durable
18. Unending
19. Unbounded
20. Prolix
21. Prolong
22. Substantial
23. Continuous
24. Protracted
25. Unceasing
26. Spacious
27. Considerable
28. Prolonged
29. Longish
30. Unfathomable

Finding the right words to express yourself can be a challenge. Whether you’re writing a blog post, crafting a speech, or simply trying to explain a concept to someone, it’s important to have the best words at your disposal. If you’re looking for synonyms for the word “long”, you’ve come to the right place. Here are 30 of the best ideas for other words that can be used in place of “long”. Prolonged, lengthy, extended, drawn-out, far-reaching, elongated, interminable, prodigious, stretched, endless, limitless, interminate, lengthened, outstretched, far, long-term, durable, unending, unbounded, prolix, prolong, substantial, continuous, protracted, unceasing, spacious, considerable, prolonged, longish, and unfathomable are all excellent words to use when you want to express the concept of “long”.