Sickness is a synonym of illness.
Illness is a synonym of sickness.
As nouns the difference between illness and sickness
is that illness
is (countable) an instance of a disease or poor health while sickness
is the quality or state of being sick or diseased; illness; disease or malady.
Other Comparisons: What's the difference?
(countable) An instance of a disease or poor health.
(uncountable) A state of bad health or disease.
* (instance) sickness
* (state) sickness
* See also
The quality or state of being sick or diseased; illness; disease or malady.
- I do lament the sickness of the king. -
- Trust not too much your now resistless charms; Those, age or sickness soon or late disarms. -.
Nausea; qualmishness; as, sickness of stomach.
- Sickness is a dangerous indulgence at my time of life. -.
* car sickness
* motion sickness