100 Best Synonyms for “Illness”

100 Best Synonyms for

No. Item Definition
1. aberration An abnormal departure from health.
2. abnormal condition A condition outside normal health.
3. abnormality A departure from normal health.
4. acute condition A sudden medical condition.
5. acute disease A sudden or short-term disease.
6. affliction A condition causing pain or trouble.
7. ailment A minor or general illness.
8. bacterial disease A disease caused by bacteria.
9. bad health A state of poor physical condition.
10. blood disorder A disorder affecting the blood.
11. bodily disorder A disorder affecting the body.
12. bug A minor infectious illness.
13. chronic condition A long-lasting medical condition.
14. chronic disease A long-lasting disease.
15. clinical condition A medically observed health condition.
16. comorbidity An additional coexisting disease.
17. complaint A reported physical ailment.
18. condition A person’s medical problem.
19. contagion A contagious disease.
20. contagious disease A disease spread between people.
21. debility Physical weakness from illness.
22. derangement Disturbance of normal bodily function.
23. disease A harmful medical condition.
24. diseased state A state of medical abnormality.
25. disorder A disturbance of normal function.
26. distemper A disease, especially in animals.
27. disturbance A disruption of normal function.
28. dysfunction Abnormal function of a body part.
29. emotional disorder A disorder affecting emotional health.
30. endemic disease A disease regularly found locally.
31. endocrine disorder A disorder affecting hormone glands.
32. epidemic disease A disease spreading widely.
33. feebleness Weakness or poor health.
34. frailty Weakness from poor health.
35. functional disorder A disorder of bodily function.
36. fungal disease A disease caused by fungi.
37. gastrointestinal disorder A disorder affecting digestion.
38. genetic disorder A disorder caused by genes.
39. health issue A matter affecting someone’s health.
40. health problem A problem affecting health.
41. heart disease A disease affecting the heart.
42. hereditary disease A disease passed through genes.
43. ill health A state of poor health.
44. imbalance An unhealthy bodily imbalance.
45. impairment Loss of normal bodily function.
46. incurable disease A disease that cannot be cured.
47. indisposition A mild state of being unwell.
48. infection Disease caused by invading germs.
49. infectious disease A germ-caused, transmissible disease.
50. infirmity Physical weakness or poor health.
51. invalidism Chronic ill health or disability.
52. irregularity An abnormal bodily condition.
53. kidney disease A disease affecting the kidneys.
54. liver disease A disease affecting the liver.
55. long-term condition A lasting health problem.
56. lung disease A disease affecting the lungs.
57. lurgy An unspecified illness, informally.
58. malady A disease or serious disorder.
59. malaise A general feeling of illness.
60. medical condition A diagnosed health problem.
61. medical disorder A disorder affecting health.
62. medical problem A problem requiring medical attention.
63. mental disorder A disorder affecting the mind.
64. morbid condition An unhealthy bodily condition.
65. morbidity The presence or state of disease.
66. morbidness The condition of being diseased.
67. nervous condition A disorder involving nerves or anxiety.
68. nervous disorder A disorder affecting nerves or emotions.
69. neurological disorder A disorder affecting the nervous system.
70. noncommunicable disease A disease not spread between people.
71. nosopathy A disease condition, technical.
72. occupational disease A disease caused by work.
73. organic disorder A disorder with physical cause.
74. pathogenic condition A condition caused by disease.
75. pathologic condition A medically abnormal condition.
76. pathology A disease process or abnormal condition.
77. pathosis A diseased or abnormal condition.
78. physical disorder A disorder of the body.
79. poor health A condition of being unwell.
80. preexisting condition A prior medical condition.
81. problem A medical difficulty, informally.
82. psychiatric disorder A medical disorder of mental health.
83. reproductive disorder A disorder affecting reproduction.
84. respiratory disease A disease affecting breathing organs.
85. sickliness A tendency to be ill.
86. sickness The state of being unwell.
87. skin disease A disease affecting the skin.
88. syndrome A set of related medical signs.
89. systemic disease A disease affecting the whole body.
90. transmissible disease A disease that can spread.
91. trouble A health problem, informally.
92. underlying condition A preexisting medical problem.
93. unhealthiness A state of poor health.
94. unhealthy condition A condition of poor health.
95. unwellness The condition of being unwell.
96. vascular disease A disease affecting blood vessels.
97. viral disease A disease caused by viruses.
98. virus A viral illness, informally.
99. weakness A state of physical infirmity.
100. zoonotic disease A disease spread from animals.