1. Vacuously or complacently and unconsciously foolish
   - inanely

See also: fatuous

• obsession
• obsessional
• obsessionally
• obsessive
• obsessive-compulsive
• obsessive-compulsive disorder
• obsessive-compulsive personality
• obsessively
• obsessiveness
• obsessivity
• obsidian
• obsolesce
• obsolescence
• obsolescent
• obsolete
• obsoleteness
• obstacle
• obstacle course
• obstacle race
• obstetric
• obstetrical
• obstetrical delivery
• obstetrical toad
• obstetrician
• obstetrics