1. (

• balmy ,
• barmy ,
• bats ,
• batty ,
• bonkers ,
• buggy ,
• cracked ,
• crackers ,
• daft ,
• dotty ,
• fruity ,
• haywire ,
• kooky ,
• kookie ,
• loco ,
• loony ,
• loopy ,
• nuts ,
• nutty ,
• round_the_bend ,
• around_the_bend ,
• wacky ,
• whacky

) informal or slang terms for mentally irregular; "it used to drive my husband balmy" ;

2. (

• crazy ,
• wild ,
• dotty ,
• gaga

) intensely enthusiastic about or preoccupied with; "crazy about cars and racing"; "they are dotty about each other"; "gaga over the rock group's new album" ;