| adjective | of or related to or containing sulfur or derived from sulfur |
| adjective | harsh or corrosive in tone “an acerbic tone piercing otherwise flowery prose” |
| adjective | characterized by oppressive heat and humidity “the summer was sultry and oppressive” |
| sulfur | noun | an abundant tasteless odorless multivalent nonmetallic element; best known in yellow crystals; occurs in many sulphide and sulphate minerals and even in native form (especially in volcanic regions) |
| sulphur | noun | an abundant tasteless odorless multivalent nonmetallic element; best known in yellow crystals; occurs in many sulphide and sulphate minerals and even in native form (especially in volcanic regions) |
| acerbity | noun | a rough and bitter manner |
| acridness | noun | the quality of being sharply disagreeable in language or tone |
| acridity | noun | the quality of being sharply disagreeable in language or tone |
| bitterness | noun | a rough and bitter manner |
| virulency | noun | extreme hostility |
| virulence | noun | extreme hostility |
| vitriol | noun | abusive or venomous language used to express blame or censure or bitter deep-seated ill will |
| sultriness | noun | oppressively hot and humid weather |