deteriorate
de·te·ri·o·rate
vi \di-ˈtir-ē-ə-ˌrāt\de·te·ri·o·rat·ed; de·te·ri·o·rat·ing
Definition of DETERIORATE
: to become impaired in quality, functioning, or condition : degenerate <her health deteriorated> <deteriorating vision>
Learn More About
Seen & Heard 
What made you want to look up deteriorate? Please tell us where you read or heard it (including the quote, if possible).
