Synonyms for Nutty as fruitcake

Synonyms starting with letter I

• insane

  mentally strange
• idiotic

  mentally strange, insane, crazy
• in the ozone

  crazy
• impractical

  insane
• irrational

  insane
• irresponsible

  insane
• ill-conceived
• impracticable
• imprudent
• inane
• inappropriate
• in pieces
• in a mess
• inverse
• in a tizzy
• in a stew
• in a state
• in state
• in a dither
• in botheration
• in disarray
• in a panic
• in a towering rage
• ireful