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

See also: asininity, foolish

• John Kenneth Galbraith
• John Knox
• John L. H. Down
• John L. Lewis
• John Lackland
• John le Carré
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• John Llewelly Lewis
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• John Luther Jones
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• John Millington Synge