What is another word for take a turn for the worse?
Pronunciation: [tˈe͡ɪk ɐ tˈɜːn fəðə wˈɜːs] (IPA) 
Take a turn for the worse is an idiomatic expression that is often used to describe a situation or health condition that has deteriorated rapidly. There are several synonyms that can be used to convey a similar sense, such as "go downhill", "deteriorate", "decline", "worsen", "sink" or "slide". These phrases can be used interchangeably in any context where the situation or condition has worsened. For example, "The project seemed promising, but it took a turn for the worse when the client pulled out." or, "The patient's health took a turn for the worse after the surgery." These synonyms can be used in both formal and informal settings.
