deteriorate

mastery
UK /dɪˈtɪə.ɹɪə.ɹeɪt/ US /dɪˈtɪɹ.iə.ɹeɪt/verb

card 1 of 1 · antonym

Which word is most opposite in meaning to **deteriorate** in the sentence below?

The patient's health began to deteriorate after the surgery.