convalescent

noun

Pronunciation: /ˌkɒnvəˈlɛsənt/

Etymology: From French convalescent, from Latin convalēscēn(t-)s, present participle of convalēscere (“to become strong or well”); see convalesce.

recovering one's health and strength after a period of illness; on the mend.
“So soon as Lady Anne was pronounced convalescent by the medical men, she insisted on discharging "that odious woman," the nurse,...”
“"Mid-Lent, and the Enemy grins," remarked Selwyn as he started for church with Nina and the children. Austin, knee-deep in a dozen Sunday supplements, refused to stir; poor little Eileen was now convalescent from grippe, but still unsteady on her legs; her maid had taken the grippe, and now moaned all day: "Mon dieu! Mon dieu! Che fais mourir!"”
of convalescence or convalescents
“She stayed in a convalescent hospital for two weeks before returning home.”

Etymology: From French convalescent, from Latin convalēscēn(t-)s, present participle of convalēscere (“to become strong or well”); see convalesce.

A person recovering from illness.
“I had been ill in health, but am now a convalescent.”