Related Clues:

• Far from a sure thing
• Not on solid ground
• Touch-and-go
• Somewhat dubious
• Full of uncertainty
• Far from sure
• Waffling
• Morally dubious
• Certainly not certain
• ????
• Easily shaken
• Not certain or confident
• Informally dubious or uncertain
• Doubtful, not definite
• Not certain, dubious