| 01. irremediablemente (17 Letters) | 02. irremisible (11 Letters) | 03. irremisiblemente (16 Letters) |
| 04. irremplasable (13 Letters) | 05. irremplazable (13 Letters) | 06. irremunerado (12 Letters) |
| 07. irrenunciable (13 Letters) | 08. irreparable (11 Letters) | 09. irreparablemente (16 Letters) |
| 10. irrepetible (11 Letters) | 11. irreprehensible (15 Letters) | 12. irreprensible (13 Letters) |
| 13. irreprensiblemente (18 Letters) | 14. irrepresentable (15 Letters) | 15. irreprimible (12 Letters) |
| 16. irreprochabilidad (17 Letters) | 17. irreprochable (13 Letters) | 18. irrequieto (10 Letters) |
| 19. irrescindible (13 Letters) | 20. irresistible (12 Letters) | 21. irresistiblemente (17 Letters) |
| 22. irresoluble (11 Letters) | 23. irresolucion (12 Letters) | 24. irresolución (12 Letters) |
| 25. irresoluto (10 Letters) | 26. irrespetar (10 Letters) | 27. irrespeto (9 Letters) |
|
| 28. irrespetoso (11 Letters) | 29. irrespetuosa (12 Letters) | 30. irrespetuosamente (17 Letters) |
| 31. irrespetuosidad (15 Letters) | 32. irrespetuoso (12 Letters) | 33. irrespirable (12 Letters) |
| 34. irresponsabilidad (17 Letters) | 35. irresponsable (13 Letters) | 36. irressoluble (12 Letters) |
| 37. irrestanable (12 Letters) | 38. irrestañable (12 Letters) | 39. irrestricta (11 Letters) |
| 40. irrestricto (11 Letters) | 41. irresuelto (10 Letters) | 42. irretractable (13 Letters) |
| 43. irretroactividad (16 Letters) | 44. irrevercible (12 Letters) | 45. irreverencia (12 Letters) |
| 46. irreverenciar (13 Letters) | 47. irreverente (11 Letters) | 48. irreverentemente (16 Letters) |
| 49. irreversibilidad (16 Letters) | 50. irreversible (12 Letters) | 51. irrevocabilidad (15 Letters) |
| 52. irrevocable (11 Letters) | 53. irrevocablemente (16 Letters) | 54. irrigacion (10 Letters) |
| 55. irrigación (10 Letters) | 56. irrigador (9 Letters) | 57. irrigar (7 Letters) |
| 58. irrisible (9 Letters) | 59. irrision (8 Letters) | 60. irrisión (8 Letters) |
|