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100 Best Synonyms for “Valid”

June 29, 2026

100 Best Synonyms for

No. Item Definition
1. acceptable good enough to approve
2. acknowledged accepted as true or real
3. admissible allowed as acceptable evidence
4. allowable permitted under rules
5. approved officially accepted
6. attested officially certified as true
7. authenticated proved genuine or real
8. authorized officially approved or permitted
9. balanced fairly judged or presented
10. believable able to be believed
11. binding officially enforceable
12. bona fide genuine and sincere
13. borne out shown to be true
14. bulletproof very hard to challenge
15. canonical accepted by official rules
16. certified officially declared genuine
17. coherent logically connected
18. confirmed made certain or official
19. consistent not contradictory
20. constitutional allowed by the constitution
21. correct free from error
22. corroborated confirmed by supporting evidence
23. defensible able to be justified
24. demonstrable capable of being proven
25. demonstrated clearly shown or established
26. documented recorded with supporting evidence
27. effective in force or operative
28. enforceable able to be upheld legally
29. established shown to be true
30. evidence-based supported by evidence
31. evidenced shown by evidence
32. fact-based based on facts
33. factual based on facts
34. fair reasonable and just
35. fit suitable for purpose
36. formal officially recognized
37. founded based on evidence
38. genuine authentic and not fake
39. germane closely relevant
40. good acceptable or valid
41. grounded based on real support
42. in effect currently operative
43. in force currently legally effective
44. incontestable unable to be challenged
45. indisputable unable to be denied
46. internally consistent free of internal contradiction
47. irrefutable impossible to disprove
48. just morally right or fair
49. justified supported by good reasons
50. lawful allowed by law
51. legal permitted by law
52. legitimate lawful or acceptable
53. licit permitted by law
54. logical consistent with reason
55. material important and relevant
56. measured careful and reasonable
57. meritorious deserving approval or praise
58. neutral not favoring either side
59. objective not influenced by feelings
60. official authorized by authority
61. open-and-shut clear and unquestionable
62. operative currently in effect
63. orderly following proper procedure
64. permissible allowed or acceptable
65. pertinent directly related and useful
66. plausible seemingly reasonable or true
67. procedural following required process
68. proper correct or suitable
69. proven shown to be true
70. ratified formally confirmed
71. rational based on reason
72. recognized officially accepted or acknowledged
73. regular conforming to rules
74. relevant closely connected and useful
75. right correct or justified
76. sanctioned formally approved
77. sensible practical and reasonable
78. solid strong and reliable
79. sound logically solid or reliable
80. substantiated supported with evidence
81. suitable right for the purpose
82. supported backed by evidence or reasons
83. telling strongly revealing or convincing
84. tenable able to be defended
85. testable able to be checked
86. thought-out carefully considered
87. traceable able to be verified
88. truthful accurately reflecting the truth
89. unassailable impossible to attack successfully
90. unchallengeable not open to dispute
91. undeniable clearly true
92. unimpeachable beyond doubt or criticism
93. verifiable able to be proven true
94. verified checked and proven true
95. warranted justified or authorized
96. watertight leaving no room for doubt
97. weighty important and convincing
98. well reasoned based on good reasoning
99. well supported backed by strong evidence
100. well-founded based on solid grounds
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