1. Deeply absorbed in thought
   - bemused, lost, preoccupied

See also: thoughtful

• bleeding heart
• bleeding tooth
• bleeding-edge
• bleep
• bleeper
• blemish
• blemished
• blench
• blend
• blend in
• blende
• blended
• blended whiskey
• blended whisky
• blender
• blending
• Blenheim
• Blenheim spaniel
• Blenniidae
• blennioid
• blennioid fish
• Blennioidea
• Blennius
• Blennius pholis
• blenny