Mindboggler synonyms | phrases

Phrases with similar meaning for Mindboggler

• closed book

  brain-teaser, mystery
• tough nut to crack

  brain-teaser, mystery
• Gordian knot

  mystery
• mind-boggler

  brain-teaser, mystery
• mind-twister

  mystery
• question mark
• cliff-hanger

  puzzle
• brain-twister

  brain-teaser
• knotty question

  brain-teaser
• tough proposition
• brain-teaser
• magic number
• skeleton in cupboard
• privileged information
• confidential information
• disputed point
• point at issue