1. Sullen or moody
   - sulky, pouty

See also: huffishness, ill-natured

• bacteriologic
• bacteriological
• bacteriological warfare
• bacteriologist
• bacteriology
• bacteriolysis
• bacteriolytic
• bacteriophage
• bacteriophagic
• bacteriophagous
• bacteriostasis
• bacteriostat
• bacteriostatic
• bacterise
• bacterium
• bacterize
• bacteroid
• Bacteroidaceae
• bacteroidal
• Bacteroides
• Bactrian camel
• baculiform
• baculovirus
• bad
• bad block