sarcastic

expressing or expressive of ridicule that wounds

• barbed, biting, nipping, pungent, mordacious — capable of wounding
• black, grim, mordant — harshly ironic or sinister
• sardonic, wry — disdainfully or ironically humorous; scornful and mocking
• satirical, satiric — exposing human folly to ridicule
• saturnine — bitter or scornful

• sarcasm, irony, satire, caustic remark — witty language used to convey insults or scorn