Illness: meaning, definitions and examples

A general term used to describe a state of being unwell, which can be both physical and mental.

• She missed several days of work due to illness
• He struggled with mental illness

Generally used to describe a temporary state of being unwell, often associated with nausea or short-term conditions.

• She felt a wave of sickness after eating the spoiled food
• He called in sick due to a sudden sickness

A specific pathological condition that affects part or all of an organism and has identifiable symptoms or causes.

• Diabetes is a chronic disease
• The spread of infectious diseases is a serious concern

Often used in a more formal or literary context to describe an ailment or disorder. Can also refer to societal problems.

• The malady of the heart proved to be fatal
• The corruption in the government is a social malady