1. (noun) a person with confused ideas; incapable of serious thought

• addle-head
• birdbrain
• loon

1. (noun) a person with confused ideas; incapable of serious thought

• misfit

1. (noun) a person with confused ideas; incapable of serious thought

• around the bend
• balmy
• barmy
• bats
• batty
• bonkers
• buggy
• cracked
• crackers
• daft
• dotty
• fruity
• haywire
• kookie
• kooky
• loco
• loony
• loopy
• nuts
• nutty
• round the bend
• wacky
• whacky