An if that's not (something), (then) I don't know what is idiom dictionary is a great resource for writers, students, and anyone looking to expand their vocabulary. It contains a list of words with similar meanings with if that's not (something), (then) I don't know what is, allowing users to choose the best word for their specific context.
類似の言葉の辞書、別の表現、同義語、イディオム イディオム if that's not (something), (then) I don't know what is