1. In a hideous manner
   - hideously, horridly 
2. In a terribly evil manner
   - heinously 
3. In a grotesque manner
   - grotesquely

See also: monstrous

• pillar box
• pillar of Islam
• pillar of strength
• pillar-box red
• pillar-shaped
• pillared
• Pillars of Hercules
• pillbox
• pillion
• pillock
• pillory
• pillow
• pillow block
• pillow fight
• pillow lace
• pillow lava
• pillow sham
• pillow slip
• pillow talk
• pillowcase
• pillwort
• pilocarpine
• pilomotor reflex
• pilose
• pilosebaceous