Adjective

• S: (adj) sulfurous, sulphurous (of or related to or containing sulfur or derived from sulfur)
• S: (adj) acerb, acerbic, acid, acrid, bitter, blistering, caustic, sulfurous, sulphurous, 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"; "a vitriolic critique"
• S: (adj) sultry, stifling, sulfurous, sulphurous (characterized by oppressive heat and humidity) "the summer was sultry and oppressive"; "the stifling atmosphere"; "the sulfurous atmosphere preceding a thunderstorm"