1. Showing a lack of intelligence or thought; stupid and silly
   - fatuous, inane, mindless, vacuous

See also: asininity, foolish

• oblique angle
• oblique bandage
• oblique case
• oblique triangle
• oblique vein of the left atrium
• oblique-angled
• obliquely
• obliqueness
• obliquity
• obliterable
• obliterate
• obliterated
• obliteration
• obliterative
• obliterator
• oblivion
• oblivious
• obliviously
• obliviousness
• oblong
• oblong leaf
• oblong woodsia
• oblongness
• obloquy
• obmutescence