- past tense form of deteriorate.
- past participle of deteriorate.
deteriorated
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
He underwent bowel surgery and was moved to intensive care, where he deteriorated rapidly.
From BBC ● Oct. 2, 2026
However, U.S. treatment volumes are weak and deteriorated so far this year after being flat in 2025, they add.
From The Wall Street Journal ● Sep. 29, 2026
On the journey back to London, his condition deteriorated to such an extent that a decision was taken to divert the team coach to a hospital in Nottingham so he could receive treatment.
From BBC ● Sep. 18, 2026
Several thousand, however, have remained in Ceuta, where the situation has since deteriorated, leading to episodes of violence and almost daily demonstrations by the local population.
From Barron's ● Sep. 14, 2026
His health had deteriorated again, but with Emma to nurse him as she always did, he turned back to his barnacles by October 1851, six months after Annies death.
From "Charles and Emma: The Darwins' Leap of Faith" by Deborah Heiligman
