"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"
2. hot enough to raise (or as if to raise) blisters;
"blistering sun"
3. very fast;
"a blistering pace""got off to a hot start""in hot pursuit""a red-hot line drive"
4. marked by harshly abusive criticism;
"his scathing remarks about silly lady novelists""her vituperative railing"