1. Informal or slang term for mentally irregular
   - balmy [archaic], barmy, bats, bonkers, buggy [N. Amer], cracked, crackers, daft, dotty, fruity, haywire, kooky, kookie, loco, loony, loopy, nuts, nutty, round the bend, around the bend, wacky, whacky

Derived forms: battiest, battier

See also: insane

Encyclopedia: Batty

• malheur wire lettuce
• Mali
• Mali franc
• Malian
• malic acid
• malice
• malice aforethought
• malicious
• malicious gossip
• malicious mischief
• maliciously
• maliciousness
• malign
• malignance
• malignancy
• malignant
• malignant anaemia
• malignant anemia
• malignant hepatoma
• malignant hypertension
• malignant hyperthermia
• malignant melanoma
• malignant neoplasm
• malignant neoplastic disease
• malignant neuroma