maniacal[mə nī′ə kəl]
- of, having, or showing mania; wildly insane; raving
- characterized by excessive or persistent enthusiasm
- Suggestive of or afflicted with extreme mental derangement: a maniacal frenzy.
- Characterized by excessive enthusiasm or excitement: a maniacal interest in gambling.
- Wildly irresponsible: maniacal drivers.