| a. | 1. | Sour, bitter, and harsh to the taste, as unripe fruit; sharp and harsh. |
| Adj. | 1. | acerb - sour or bitter in taste |
| 2. | acerb - harsh or corrosive in tone; "an acerbic tone piercing otherwise flowery prose"; "a barrage of acid comments"; "her acrid remarks make her many enemies"; "bitter words"; "blistering criticism"; "caustic jokes about political assassination, talk-show hosts and medical ethics"; "a sulfurous denunciation" |