Opposites could include: unwell ill sick poorly ailing indisposed
She was sorry to miss the meeting but she was indisposed.
somewhat ill or pronedd to illness
noun form = indisposition.
ailing, indisposed, unwell
I believe that saying is indisposed. It means you're busy
1. Disinclination; unwillingness.2. A minor ailment or illness.
weak, failing, poor, flawed, unstable, deficient, ill, poorly, sick, weak, indisposed
He stands in if the Prime Minister is overseas or indisposed - much the same as the Vice President in the United States.
Indisposed is often defined as "feeling sick or unwell." It's also sometimes used to just mean incapable of accepting visitors. If the cops were there to arrest him, it may mean it's time to find a new boyfriend.
unhealthy, harmful, detrimental, destructive, injurious, damaging, deleterious, malign, noxious, poisonous, insalubrious, baleful, sickly, ill, unwell, ailing, sick, indisposed, weak, wan, sallow, frail, delicate, infirm, unwholesome, morbid, macabre, twisted, abnormal, warped, depraved, unnatural, sick, wrong.
She is hired by the Phantomhive manor to work as its maid, and to act as a protector of the manor its self, and a bodyguard to Ciel when Sebastian is otherwise indisposed.