- barbed, biting, nipping, pungent, mordacious - capable of wounding; "a barbed compliment"; "a biting aphorism"; "pungent satire"
Antonym: unsarcastic (indirect, via sarcastic)
- mordacious - biting or given to biting; "they deliberately gave me a skittish and mordacious mount"
Antonym: safe (indirect, via dangerous)