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100 Best Synonyms for “Substantial”

July 1, 2026

100 Best Synonyms for

No. Item Definition
1. abundant present in large quantities
2. ample more than enough; plentiful
3. appreciable large enough to be noticed
4. bountiful large in amount; plentiful
5. broad wide in range or scope
6. bulky large and taking space
7. cardinal of chief importance
8. central most important or essential
9. chief most important
10. colossal extremely large
11. comprehensive complete and wide-ranging
12. consequential important in result or effect
13. considerable fairly large in amount
14. copious abundant in amount
15. decent-sized fairly large in size
16. decisive clear and important
17. deep great in extent or intensity
18. dense closely packed; thick
19. dominant most important or powerful
20. elevated higher than usual
21. enormous extremely large in size
22. epic very large or impressive
23. evident clear and noticeable
24. exceptional unusually great
25. extensive covering a large area or amount
26. extraordinary very unusual and great
27. fair-sized moderately large
28. far-reaching having wide effects
29. firm solid and steady
30. fleshed-out fully developed
31. forceful strong and effective
32. formidable impressively large or powerful
33. full containing a large amount
34. fundamental basic and important
35. generous more than adequate
36. gigantic extremely large
37. good-sized fairly large in size
38. goodly fairly large in amount
39. great large in amount or degree
40. hardy strong and robust
41. healthy fairly large and satisfactory
42. heavy large in amount or degree
43. hefty large and heavy; considerable
44. high great in amount or level
45. huge very large
46. immense extremely large
47. important having great significance
48. impressive large enough to impress
49. jumbo very large
50. key very important
51. king-sized very large
52. large big in size or amount
53. lavish very generous or abundant
54. leading most important or main
55. loaded filled with a lot
56. major important and large in effect
57. mammoth huge in size
58. marked clearly noticeable; significant
59. massive very large and heavy
60. material important; relevant in effect
61. meaty full of substance
62. momentous very important
63. monumental very great in scale
64. notable worthy of attention; significant
65. noticeable easy to see or detect
66. outsized unusually large
67. oversized larger than usual
68. phenomenal extraordinarily great
69. plentiful existing in large amounts
70. potent powerful in effect
71. powerful having strong effect
72. primary first in importance
73. profound very great or intense
74. profuse produced in large amounts
75. pronounced strongly noticeable or clear
76. real genuine and meaningful
77. remarkable unusually notable
78. rich abundant or full
79. robust strong and substantial
80. serious important and not minor
81. signal notably important
82. significant large enough to matter
83. sizable fairly large in size
84. sizeable fairly large in size
85. solid strong and considerable
86. staggering astonishingly large
87. substantive real and meaningful
88. sweeping wide-ranging and extensive
89. tangible clear and real
90. telling revealing and significant
91. thick dense or not thin
92. thumping very large or forceful
93. towering very great or impressive
94. valuable worth a lot
95. vast very great in size
96. vital absolutely necessary; important
97. voluminous large in volume or amount
98. weighty important and serious
99. whopping extremely large
100. wide-ranging covering many areas
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