a. rare. [f. L. acerb-us + -IC.] Of a sour, harsh or severe character.
1856. G. W. M. Reynolds, Myst. Ct. Lond., V. lxxvii. 366/2. Not heeding the Baronet’s acerbic interjection.
1865. North Brit. Daily Mail, 4 Dec. Exaggerated notions are entertained now-a-days regarding the gloomy acerbic nature of Sabbath observance among the ancient Jews.
