ADJ-GRADED [usually ADJ n]劣质的;低劣的;糟糕的 Something that is crummy is unpleasant, of very poor quality, or not good enough. 劣质的;低劣的;糟糕的 [informal, disapproval]
When I first came here, I had a crummy flat.
我刚来这儿的时候,住的公寓简直糟透了。
The house is so old and crummy it's falling apart.