1. In a maniacal manner or to a maniacal degree
   "he was maniacally obsessed with jealousy"

See also: maniacal

• head-shrinker
• head-to-head
• head-up display
• headache
• headache powder
• headachy
• headband
• headbanger
• headboard
• headbutt
• headcase
• headcheese
• headcount
• headcounter
• headdress
• headed
• header
• headfast
• headfirst
• headfish
• headful
• headgear
• headhunt
• headhunter
• headily