Severely critical or biting (remarks, criticism); harsh and sharply pointed in tone.
彼の辛辣な批評は監督の演出を的確に突いたが、受け手には手厳しく聞こえた。
His scathing critique accurately hit the director’s staging, but it sounded harsh to the recipient.
新聞の書評は辛辣な一文で始まり、作者の意図を厳しく問いただした。
The newspaper review began with a biting sentence that sharply questioned the author's intent.
辛らつな言葉を避けて、建設的な意見を伝えるように心がけた。
I tried to avoid harsh words and convey constructive opinions.