形容词

1. 处境困难的;境况不佳的;衰退的
An ailing organization or society is in difficulty and is becoming weaker.

2. 生病的；抱恙的；体衰的
If someone is ailing, they are ill and are not getting better.

1. somewhat ill or prone to illness

e.g. my poor ailing grandmother
feeling a bit indisposed today
you look a little peaked
feeling poorly
a sickly child
is unwell and can't come to work

Synonym: indisposedpeaked(p)poorly(p)sicklyunwellunder the weatherseedy