Adjective caustic has 2 senses
- 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)
- caustic, corrosive, erosive, vitriolic - of a substance, especially a strong acid; capable of destroying or eating away by chemical action
Antonym: constructive (indirect, via destructive)
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Noun caustic has 1 sense
- caustic - any chemical substance that burns or destroys living tissue
--1 is a kind of compound, chemical compound
--1 has particulars: lye; silver nitrate
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