Illness n. : The condition of being ill, evil, or bad; badness; unfavorableness.

Illness n. : Disease; indisposition; malady; disorder of health; sickness; as, a short or a severe illness.

Illness n. : Wrong moral conduct; wickedness.

Example:
What Illness in a cat has blood around the nose?

Taxonomy
illness, treatment, Mental illness, disease, body, behavior, health and illness, injuries, patients, symptoms, free encyclopedia, fever, drugs, cause illness, chronic illness, viruses, impairment, Health.

Defination from the web:
Illness (sometimes referred to as ill-health or ail) can be defined as a state of poor health. ... According to evolutionary medicine, much illness is not directly caused by an infection or body dysfunction but is instead a response created by the body. ...