Related Clues:

• Not smart
• Ill-advised
• Imprudently
• Not sensible
• Flawed
• Apt to turn out badly
• Rash, perhaps
• None too savvy
• Faulty, as a plan
• In poor condition
• Fallacious
• Injudicious
• Unsafe or not well-grounded
• Defective or flawed
• Imperfect or untenable