出来が悪い

Meaning

1. expadj-i
   (having) bad marks or results (e.g. in school)
2. expadj-i
   of poor quality or workmanship

Example sentences

• 彼は数学の出来が悪い。

  He is terrible at math.

• 彼のこの小説は、前作より出来が悪い。

  This novel of his is inferior to the previous one.