Adjective acerbic has 2 senses
- acerb, acerbic, astringent, sharp - sour or bitter in taste
Antonym: sweet (indirect, via sour)
- acerb, acerbic, acid, acrid, bitter, blistering, caustic, sulfurous, sulphurous, venomous, virulent, vitriolic - 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"
Antonym: pleasant (indirect, via unpleasant)
,