1. (noun) obsolete terms for legal insanity

• insaneness
• madness

2. (noun) foolish or senseless behavior

• craziness
• folly
• foolery
• indulgence
• tomfoolery

1. (noun) foolish or senseless behavior

• buffoonery
• clowning
• frivolity
• harlequinade
• japery
• prank
• meshugaas
• mishegaas
• mishegoss

1. (noun) obsolete terms for legal insanity

• insanity

2. (noun) foolish or senseless behavior

• caper
• frolic
• gambol
• play
• romp

1. (noun) obsolete terms for legal insanity

• brainsick
• crazy
• demented
• disturbed
• mad
• sick
• unbalanced
• unhinged
• insane
• lunatic
• moonstruck

2. (noun) foolish or senseless behavior

• arse around
• fool
• fool around
• horse around
• crazy
• crazy
• half-baked
• screwball
• softheaded
• lunatic
• moonstruck