1. Very foolish
   "harebrained ideas"
   - insane, mad

See also: foolish

• atmospherically
• atmospherics
• atole
• atoll
• atom
• atom smasher
• atom-bomb
• atomic
• atomic bomb
• atomic clock
• atomic cocktail
• atomic energy
• Atomic Energy Commission
• atomic explosion
• atomic mass
• atomic mass unit
• atomic number
• atomic number 1
• atomic number 10
• atomic number 100
• atomic number 101
• atomic number 102
• atomic number 103
• atomic number 104
• atomic number 105