the poor condition of a person’s body or mind（身心）健康状况差；生病
He retired early on grounds of ill health.他由于身体不好而提早退休。🔊🔊
Synonyms illnessillness
sickness
ill health
trouble
These are all words for the state of being physically or mentally ill.
illnessthe state of being physically or mentally ill指身体或精神上的疾病
sicknessillness; bad health:
I recommend you get insurance against sickness and unemployment.我建议你办个疾病和失业保险。
illness or sickness?用 illness 还是 sickness？Sickness is used especially in contexts concerning work and insurance. It is commonly found with words such as pay, leave, absence and insurance. Illness has a wider range of uses and is found in more general contexts.
ill health(rather formal) the state of being physically ill or having lots of health problems:指健康状况不佳：
She resigned because of ill health.她因健康状况不佳而辞职。
Ill health often lasts a long period of time.
troubleillness or pain:
heart trouble.心脏疾病
When trouble is used with this meaning, it is necessary to say which part of the body is affected.
Patterns
chronic illness/sickness/ill health
to suffer from illness/sickness/ill health/heart, etc. trouble