What is another word for not up to scratch?
Pronunciation: [nˌɒt ˌʌp tə skɹˈat͡ʃ] (IPA) 
When something is "not up to scratch," it means it is not of the desired quality or standard. There are several synonyms that you can use if you want to express the same idea. Some of the most common alternatives for the phrase "not up to scratch" include "subpar," "below standard," "unsatisfactory," "deficient," "inadequate," "inferior," "unacceptable," "poor," "unexceptional," and "lacking." Each of these words conveys the idea that something is not good enough and needs improvement. If you want to add some variety to your vocabulary or express the same concept in different ways, these synonyms can help you do just that.
