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100 Best Synonyms for “Insincere”

June 24, 2026

100 Best Synonyms for

No. Item Definition
1. actorly Seeming performed, not natural.
2. affected Artificial and unnatural.
3. affectedly polite Politely fake or artificial.
4. artificial Not natural or genuine.
5. backstabbing Treacherous and deceitful.
6. bogus False or not genuine.
7. bootlicking Servilely flattering for advantage.
8. brownnosing Flattering to gain favor.
9. cagey Secretive and not fully honest.
10. calculating Cleverly self-interested and false.
11. cloying Excessively sweet and artificial.
12. contrived Forced and unnatural.
13. counterfeit Made to seem genuine.
14. crafty Cleverly deceitful.
15. crooked Dishonest or corrupt.
16. cunning Skillfully deceitful.
17. deceitful Dishonest and misleading.
18. deceptive Intended to mislead.
19. devious Indirect and deceitful.
20. dishonest Not truthful or sincere.
21. disingenuous Pretending to be sincere.
22. double-dealing Deceitful and treacherous.
23. double-faced Two-faced or deceitful.
24. duplicitous Deceitful in speech or behavior.
25. empty Lacking real meaning or feeling.
26. evasive Avoiding honesty or directness.
27. fabricated Made up or invented.
28. fake Not genuine or honest.
29. false Not true or genuine.
30. feigned Pretended rather than felt.
31. fictitious Invented, not real.
32. forced Not natural or heartfelt.
33. formulaic Routine and lacking sincerity.
34. fraudulent Deceptive or falsely presented.
35. glib Smooth but not thoughtful.
36. glibly false Smoothly but dishonestly expressed.
37. guileful Full of cunning deception.
38. halfhearted Lacking enthusiasm or conviction.
39. hammy Overacted and unnatural.
40. hollow Lacking real feeling.
41. honeyed Sweet-sounding but false.
42. hypocritical Pretending to have virtues.
43. inauthentic Not authentic or genuine.
44. invented Made up rather than true.
45. Janus-faced Two-faced and deceitful.
46. lukewarm Lacking warmth or conviction.
47. lying Dishonest or intentionally false.
48. made-up Invented or fabricated.
49. manipulative Controlling others through deception.
50. manufactured Artificially produced or contrived.
51. mechanical Done without genuine feeling.
52. melodramatic Exaggerated and not genuine.
53. mendacious Given to lying or deceit.
54. meretricious Flashy but falsely attractive.
55. misleading Giving a false impression.
56. mock Pretended, not real.
57. non-genuine Not real or authentic.
58. not authentic Not real or genuine.
59. not genuine Lacking authenticity or sincerity.
60. not heartfelt Lacking real feeling.
61. not honest Lacking truthfulness or sincerity.
62. obsequious Servilely flattering and false.
63. oily Smoothly flattering and false.
64. oleaginous Oily and falsely flattering.
65. overacted Performed too dramatically.
66. performative Done for show, not feeling.
67. perfunctory Done without real care.
68. phony Fake or not sincere.
69. plastic Artificial and not genuine.
70. pretend Not real or genuine.
71. pretended Only acted, not genuine.
72. pseudo False or pretended.
73. put-on Pretended or affected.
74. rehearsed Practiced and not spontaneous.
75. scheming Secretly deceitful or calculating.
76. sham Pretended rather than genuine.
77. shamelessly false Openly fake or dishonest.
78. simulated Imitated rather than real.
79. sly Secretly deceitful.
80. sneaky Secretive and dishonest.
81. specious Seeming true but false.
82. spurious Not genuine or authentic.
83. staged Arranged for false effect.
84. superficial Lacking depth or real feeling.
85. tepid Weak and unenthusiastic.
86. theatrical Overdone and not natural.
87. toadying Servilely flattering.
88. token Only symbolic, not meaningful.
89. treacherous Deceptive and untrustworthy.
90. two-faced Deceptive in different situations.
91. uncandid Not frank or sincere.
92. unconvincing Not believable or genuine.
93. underhanded Secretly dishonest.
94. unheartfelt Not truly felt.
95. unreal Not genuine or authentic.
96. untrue Not genuine or faithful.
97. untrustworthy Not deserving of trust.
98. untruthful Not honest or sincere.
99. wily Clever and deceitful.
100. wooden Stiff and lacking feeling.
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