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

See also: fatuousness, foolish

• unpatronised
• unpatronized
• unpatterned
• unpaved
• unpeaceable
• unpeaceful
• unpeeled
• unpeg
• unpeople
• unpeopled
• unperceivable
• unperceived
• unperceiving
• unperceptive
• unperceptiveness
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• unpermissive
• unpermissiveness
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• unperson
• unpersuadable
• unpersuaded
• unpersuasive
• unpersuasiveness