| No. | Item | Definition |
|---|---|---|
| 1. | anonymised | made impossible to identify |
| 2. | anonymized | made impossible to identify |
| 3. | assumed-name | using a name not real |
| 4. | authorless | having no named author |
| 5. | by a hidden source | provided by a concealed source |
| 6. | by a secret source | provided by a hidden source |
| 7. | by an undisclosed source | provided by an unrevealed source |
| 8. | by an unidentified person | done by an unknown person |
| 9. | by an unidentified source | provided by an unknown source |
| 10. | by an unknown author | written by no known author |
| 11. | by an unnamed author | written by no named author |
| 12. | by an unnamed person | done by no named person |
| 13. | by an unnamed source | provided by no named source |
| 14. | by someone unknown | done by an unknown person |
| 15. | cloaked | covered or concealed |
| 16. | concealed | kept from being known |
| 17. | confidential | meant to be kept private |
| 18. | covert | not openly shown |
| 19. | de-identified | stripped of personal identifiers |
| 20. | detached | not personally identified |
| 21. | disconnected | not linked to identity |
| 22. | disguised | made hard to recognize |
| 23. | donorless | having no named donor |
| 24. | faceless | lacking a clear identity |
| 25. | from an unknown source | coming from no named source |
| 26. | from an unnamed source | coming from no named source |
| 27. | generic | lacking distinct identity |
| 28. | ghostwritten | written by an unnamed writer |
| 29. | hidden | kept out of sight |
| 30. | identity unknown | not known by identity |
| 31. | identity withheld | identity deliberately not revealed |
| 32. | identity-free | lacking an identifying identity |
| 33. | identityless | lacking a known identity |
| 34. | impersonal | lacking personal identity |
| 35. | incognito | with identity concealed |
| 36. | indistinct | not clearly identifiable |
| 37. | indistinguishable | not noticeably different |
| 38. | label-free | without an identifying label |
| 39. | markless | lacking identifying marks |
| 40. | masked | having identity covered |
| 41. | missing-name | lacking a stated name |
| 42. | name withheld | kept unnamed publicly |
| 43. | nameless | without a known name |
| 44. | nondescript | lacking distinctive features |
| 45. | nonidentifying | not revealing identity |
| 46. | not attributed | assigned to no source |
| 47. | not credited | given no public credit |
| 48. | not disclosed | not revealed publicly |
| 49. | not identified | not recognized by identity |
| 50. | not named | not identified by name |
| 51. | not revealed | kept from being known |
| 52. | not specified | not stated precisely |
| 53. | of uncertain origin | having unclear origin |
| 54. | of undisclosed origin | having unrevealed origin |
| 55. | of unknown authorship | having no known author |
| 56. | of unknown origin | having no known origin |
| 57. | of unknown source | having no known source |
| 58. | of unnamed source | having no named source |
| 59. | originless | having no stated origin |
| 60. | ownerless | having no known owner |
| 61. | pen-named | written under a pen name |
| 62. | private | not publicly identified |
| 63. | pseudonymous | using a false name |
| 64. | secret | kept from public knowledge |
| 65. | separate | not tied to an identity |
| 66. | signatureless | lacking a signature |
| 67. | source-free | having no named source |
| 68. | sourceless | having no identified source |
| 69. | sponsorless | having no named sponsor |
| 70. | unattributed | not credited to a source |
| 71. | uncited | not supported by named citation |
| 72. | uncredited | not given public credit |
| 73. | under a false name | using an invented name |
| 74. | under a pen name | using a writer’s false name |
| 75. | under a pseudonym | using an assumed name |
| 76. | under an alias | using another name |
| 77. | undisclosed | not publicly revealed |
| 78. | unidentified | whose identity is not known |
| 79. | unknown | not known or identified |
| 80. | unlabeled | without an identifying label |
| 81. | unlabelled | without an identifying label |
| 82. | unmarked | bearing no identifying mark |
| 83. | unmentioned | not named or stated |
| 84. | unnamed | not identified by name |
| 85. | unowned | having no stated owner |
| 86. | unrecognised | not able to be recognized |
| 87. | unrecognizable | not able to be recognized |
| 88. | unreferenced | not linked to a source |
| 89. | unrevealed | not made known |
| 90. | unsigned | not bearing a signature |
| 91. | unsourced | having no cited source |
| 92. | untraceable | unable to be traced |
| 93. | unverified | not confirmed by identification |
| 94. | veiled | partly hidden or disguised |
| 95. | withheld | kept back from disclosure |
| 96. | without a name | having no stated name |
| 97. | without attribution | with no named source |
| 98. | without credit | receiving no public credit |
| 99. | without identification | lacking stated identity |
| 100. | writerless | having no named writer |