おもしろく

interestingly, in an interesting way

→ 面白い
おもしろ interesting, fun + Adverbial/continuative form of an i-adjective
adjective Rare #38,698
interestingly, in an interesting way
JA: 先生は授業をおもしろく説明しました。
EN: The teacher explained the lesson in an interesting way.
Forms of 面白い

彼のこの本は全然おもしろくありません

This book of his isn’t interesting at all.

経済的であるばかりでなくおもしろくある

Not only is it economical, but it’s also interesting.

その番組はだんだんおもしろくなってきた

That show is gradually getting more interesting.

赤ん坊は猫のおもしろく遊んでた

The baby was having fun playing with the cat’s tail.