acid
刻薄的(acid remarks = 带腐蚀性的讽刺,语气尖锐)
caustic
尖刻的,腐蚀性的(caustic = 更强烈的刻薄,有「灼伤」感,书面正式)
Her acid response to the suggestion made it clear she had no interest in compromise.
她对这一建议的刻薄回应清楚表明她对妥协毫无兴趣。
The critic's caustic review destroyed the playwright's confidence before the show even opened.
评论家尖刻的评论在演出开幕前就摧毁了剧作家的信心。