造詣
Noun
1
noun (common) (futsuumeishi)
deep knowledge;attainments;scholarship
造詣深い
adjective (keiyoushi)
1
adjective (keiyoushi)
scholarly;learned;well-versed (in);profoundly knowledgeable (about)
See also:
造詣が深い (ぞうけいがふかい)
日本文化に造詣深いことはいいことです。
Being knowledgeable about Japanese culture is a good thing.