What is another word for make lower in quality?
Pronunciation: [mˌe͡ɪk lˈə͡ʊəɹ ɪn kwˈɒlɪti] (IPA) 
There are several synonyms for the term "make lower in quality." One such word is "degrade," which means to lower the quality, status, or value of something. Another synonym is "deteriorate," which means to make something worse over time. "Diminish" and "weaken" are also synonymous terms that describe the act of reducing the quality of something. To "impair" or "damage" something is to make it worse or less effective than it was before. Synonyms for "make lower in quality" might also include "tarnish," "spoil," or "undermine." Regardless of the term used, the result is the same: a reduction in the quality or value of something.
