Adverbs for Bitter

incisively; cruelly; brutally; unwisely; atrociously; malevolently; tauntingly; caustically; diabolically; maliciously; shrewdly; enviously; viciously; purposely; unnecessarily; uncontrollably; insidiously; invidiously; sharply; cynically; sarcastically; spitefully; jealously; intentionally; cunningly; ironically; insinuatingly.